| Age | Commit message (Collapse) | Author | Files | Lines |
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In smc_ib_remove_dev() check if the provided ib device was actually
initialized for SMC before.
Reported-by: [email protected]
Fixes: a4cf0443c414 ("smc: introduce SMC as an IB-client")
Signed-off-by: Karsten Graul <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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We cannot register the same netdev notifier multiple times when probing
stmmac devices. Register the notifier only once in module init, and also
make debugfs creation/deletion safe against simultaneous notifier call.
Fixes: 481a7d154cbb ("stmmac: debugfs entry name is not be changed when udev rename device name.")
Signed-off-by: Aaro Koskinen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The firmware paths for the VSC8584 PHYs not not contain the leading
'microchip/' directory, as used in linux-firmware, resulting in an
error when probing the driver. This patch fixes it.
Fixes: a5afc1678044 ("net: phy: mscc: add support for VSC8584 PHY")
Signed-off-by: Antoine Tenart <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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syzbot noted that the master MPTCP socket lacks the icsk_sync_mss
callback, and was able to trigger a null pointer dereference:
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 8e171067 P4D 8e171067 PUD 93fa2067 PMD 0
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8984 Comm: syz-executor066 Not tainted 5.6.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc900020b7b80 EFLAGS: 00010246
RAX: 1ffff110124ba600 RBX: 0000000000000000 RCX: ffff88809fefa600
RDX: ffff8880994cdb18 RSI: 0000000000000000 RDI: ffff8880925d3140
RBP: ffffc900020b7bd8 R08: ffffffff870225be R09: fffffbfff140652a
R10: fffffbfff140652a R11: 0000000000000000 R12: ffff8880925d35d0
R13: ffff8880925d3140 R14: dffffc0000000000 R15: 1ffff110124ba6ba
FS: 0000000001a0b880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000a6d6f000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
cipso_v4_sock_setattr+0x34b/0x470 net/ipv4/cipso_ipv4.c:1888
netlbl_sock_setattr+0x2a7/0x310 net/netlabel/netlabel_kapi.c:989
smack_netlabel security/smack/smack_lsm.c:2425 [inline]
smack_inode_setsecurity+0x3da/0x4a0 security/smack/smack_lsm.c:2716
security_inode_setsecurity+0xb2/0x140 security/security.c:1364
__vfs_setxattr_noperm+0x16f/0x3e0 fs/xattr.c:197
vfs_setxattr fs/xattr.c:224 [inline]
setxattr+0x335/0x430 fs/xattr.c:451
__do_sys_fsetxattr fs/xattr.c:506 [inline]
__se_sys_fsetxattr+0x130/0x1b0 fs/xattr.c:495
__x64_sys_fsetxattr+0xbf/0xd0 fs/xattr.c:495
do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440199
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffcadc19e48 EFLAGS: 00000246 ORIG_RAX: 00000000000000be
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440199
RDX: 0000000020000200 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 0000000000000003 R09: 00000000004002c8
R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000401a20
R13: 0000000000401ab0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
CR2: 0000000000000000
Address the issue adding a dummy icsk_sync_mss callback.
To properly sync the subflows mss and options list we need some
additional infrastructure, which will land to net-next.
Reported-by: [email protected]
Fixes: 2303f994b3e1 ("mptcp: Associate MPTCP context with TCP socket")
Signed-off-by: Paolo Abeni <[email protected]>
Reviewed-by: Mat Martineau <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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genphy_c45_check_and_restart_aneg
When auto-negotiation is not required, return value should be zero.
Changes v1->v2:
- improved comments and code as Andrew Lunn and Heiner Kallweit suggestion
- fixed issue in genphy_c45_check_and_restart_aneg as Russell King
suggestion.
Fixes: 2a10ab043ac5 ("net: phy: add genphy_check_and_restart_aneg()")
Fixes: 1af9f16840e9 ("net: phy: add genphy_c45_check_and_restart_aneg()")
Signed-off-by: Sudheesh Mavila <[email protected]>
Reviewed-by: Heiner Kallweit <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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As the description before netdev_run_todo, we cannot call free_netdev
before rtnl_unlock, fix it by reorder the code.
Signed-off-by: yangerkun <[email protected]>
Reviewed-by: Oliver Hartkopp <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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IPV6_ADDRFORM is able to transform IPv6 socket to IPv4 one.
While this operation sounds illogical, we have to support it.
One of the things it does for TCP socket is to switch sk->sk_prot
to tcp_prot.
We now have other layers playing with sk->sk_prot, so we should make
sure to not interfere with them.
This patch makes sure sk_prot is the default pointer for TCP IPv6 socket.
syzbot reported :
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD a0113067 P4D a0113067 PUD a8771067 PMD 0
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 10686 Comm: syz-executor.0 Not tainted 5.6.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc9000281fce0 EFLAGS: 00010246
RAX: 1ffffffff15f48ac RBX: ffffffff8afa4560 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a69a8f40
RBP: ffffc9000281fd10 R08: ffffffff86ed9b0c R09: ffffed1014d351f5
R10: ffffed1014d351f5 R11: 0000000000000000 R12: ffff8880920d3098
R13: 1ffff1101241a613 R14: ffff8880a69a8f40 R15: 0000000000000000
FS: 00007f2ae75db700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000a3b85000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
inet_release+0x165/0x1c0 net/ipv4/af_inet.c:427
__sock_release net/socket.c:605 [inline]
sock_close+0xe1/0x260 net/socket.c:1283
__fput+0x2e4/0x740 fs/file_table.c:280
____fput+0x15/0x20 fs/file_table.c:313
task_work_run+0x176/0x1b0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:188 [inline]
exit_to_usermode_loop arch/x86/entry/common.c:164 [inline]
prepare_exit_to_usermode+0x480/0x5b0 arch/x86/entry/common.c:195
syscall_return_slowpath+0x113/0x4a0 arch/x86/entry/common.c:278
do_syscall_64+0x11f/0x1c0 arch/x86/entry/common.c:304
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c429
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2ae75dac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: 0000000000000000 RBX: 00007f2ae75db6d4 RCX: 000000000045c429
RDX: 0000000000000001 RSI: 000000000000011a RDI: 0000000000000004
RBP: 000000000076bf20 R08: 0000000000000038 R09: 0000000000000000
R10: 0000000020000180 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000a9d R14: 00000000004ccfb4 R15: 000000000076bf2c
Modules linked in:
CR2: 0000000000000000
---[ end trace 82567b5207e87bae ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc9000281fce0 EFLAGS: 00010246
RAX: 1ffffffff15f48ac RBX: ffffffff8afa4560 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a69a8f40
RBP: ffffc9000281fd10 R08: ffffffff86ed9b0c R09: ffffed1014d351f5
R10: ffffed1014d351f5 R11: 0000000000000000 R12: ffff8880920d3098
R13: 1ffff1101241a613 R14: ffff8880a69a8f40 R15: 0000000000000000
FS: 00007f2ae75db700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000a3b85000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface")
Signed-off-by: Eric Dumazet <[email protected]>
Reported-by: [email protected]
Cc: Daniel Borkmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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If an SMC connection to a certain peer is setup the first time,
a new linkgroup is created. In case of setup failures, such a
linkgroup is unusable and should disappear. As a first step the
linkgroup is removed from the linkgroup list in smc_lgr_forget().
There are 2 problems:
smc_listen_decline() might be called before linkgroup creation
resulting in a crash due to calling smc_lgr_forget() with
parameter NULL.
If a setup failure occurs after linkgroup creation, the connection
is never unregistered from the linkgroup, preventing linkgroup
freeing.
This patch introduces an enhanced smc_lgr_cleanup_early() function
which
* contains a linkgroup check for early smc_listen_decline()
invocations
* invokes smc_conn_free() to guarantee unregistering of the
connection.
* schedules fast linkgroup removal of the unusable linkgroup
And the unused function smcd_conn_free() is removed from smc_core.h.
Fixes: 3b2dec2603d5b ("net/smc: restructure client and server code in af_smc")
Fixes: 2a0674fffb6bc ("net/smc: improve abnormal termination of link groups")
Signed-off-by: Ursula Braun <[email protected]>
Signed-off-by: Karsten Graul <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Outdated Raspberry Pi 4 firmware might configure the external PHY as
rgmii although the kernel currently sets it as rgmii-rxid. This makes
connections unreliable as ID_MODE_DIS is left enabled. To avoid this,
explicitly clear that bit whenever we don't need it.
Fixes: da38802211cc ("net: bcmgenet: Add RGMII_RXID support")
Signed-off-by: Nicolas Saenz Julienne <[email protected]>
Acked-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The put of the flags was added by the commit referenced in fixes tag,
however the size of the message was not extended accordingly.
Fix this by adding size of the flags bitfield to the message size.
Fixes: e38226786022 ("net: sched: update action implementations to support flags")
Signed-off-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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obj-* needs a trailing slash for a directory, but subdir-* does not.
Signed-off-by: Masahiro Yamada <[email protected]>
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list_for_each_entry_rcu() has built-in RCU and lock checking.
Pass cond argument to list_for_each_entry_rcu() to silence
false lockdep warning when CONFIG_PROVE_RCU_LIST is enabled.
The devlink->lock is held when devlink_dpipe_table_find()
is called in non RCU read side section. Therefore, pass struct devlink
to devlink_dpipe_table_find() for lockdep checking.
Signed-off-by: Madhuparna Bhowmik <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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We are still experiencing some packet loss with the existing advanced
congestion buffering (ACB) settings with the IMP port configured for
2Gb/sec, so revert to conservative link speeds that do not produce
packet loss until this is resolved.
Fixes: 8f1880cbe8d0 ("net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec")
Fixes: de34d7084edd ("net: dsa: bcm_sf2: Only 7278 supports 2Gb/sec IMP port")
Signed-off-by: Florian Fainelli <[email protected]>
Reviewed-by: Vivien Didelot <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes:
1) Perform garbage collection from workqueue to fix rcu detected
stall in ipset hash set types, from Jozsef Kadlecsik.
2) Fix the forceadd evaluation path, also from Jozsef.
3) Fix nft_set_pipapo selftest, from Stefano Brivio.
4) Crash when add-flush-add element in pipapo set, also from Stefano.
Add test to cover this crash.
5) Remove sysctl entry under mutex in hashlimit, from Cong Wang.
====================
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform fix from Benson Leung:
"Fix a build warning"
* tag 'tag-chrome-platform-fixes-for-v5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: wilco_ec: Include asm/unaligned instead of linux/ path
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Add missing newlines to netdev_* format strings so the lines
aren't buffered by the printk subsystem.
Nitpicked-by: Jakub Kicinski <[email protected]>
Signed-off-by: Jonathan Lemon <[email protected]>
Acked-by: Michael Chan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Before releasing the global mutex, we only unlink the hashtable
from the hash list, its proc file is still not unregistered at
this point. So syzbot could trigger a race condition where a
parallel htable_create() could register the same file immediately
after the mutex is released.
Move htable_remove_proc_entry() back to mutex protection to
fix this. And, fold htable_destroy() into htable_put() to make
the code slightly easier to understand.
Reported-and-tested-by: [email protected]
Fixes: c4a3922d2d20 ("netfilter: xt_hashlimit: reduce hashlimit_mutex scope for htable_put()")
Signed-off-by: Cong Wang <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Syzbot reported that ethnl_compact_sanity_checks() can be tricked into
reading past the end of ETHTOOL_A_BITSET_VALUE and ETHTOOL_A_BITSET_MASK
attributes and even the message by passing a value between (u32)(-31)
and (u32)(-1) as ETHTOOL_A_BITSET_SIZE.
The problem is that DIV_ROUND_UP(attr_nbits, 32) is 0 for such values so
that zero length ETHTOOL_A_BITSET_VALUE will pass the length check but
ethnl_bitmap32_not_zero() check would try to access up to 512 MB of
attribute "payload".
Prevent this overflow byt limiting the bitset size. Technically, compact
bitset format would allow bitset sizes up to almost 2^18 (so that the
nest size does not exceed U16_MAX) but bitsets used by ethtool are much
shorter. S16_MAX, the largest value which can be directly used as an
upper limit in policy, should be a reasonable compromise.
Fixes: 10b518d4e6dd ("ethtool: netlink bitset handling")
Reported-by: [email protected]
Reported-by: [email protected]
Reported-by: [email protected]
Signed-off-by: Michal Kubecek <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Fixes the lower and upper bounds when there are multiple TCs and
traffic is on the the same TC on the same device.
The lower bound is represented by 'qoffset' and the upper limit for
hash value is 'qcount + qoffset'. This gives a clean Rx to Tx queue
mapping when there are multiple TCs, as the queue indices for upper TCs
will be offset by 'qoffset'.
v2: Fixed commit description based on comments.
Fixes: 1b837d489e06 ("net: Revoke export for __skb_tx_hash, update it to just be static skb_tx_hash")
Fixes: eadec877ce9c ("net: Add support for subordinate traffic classes to netdev_pick_tx")
Signed-off-by: Amritha Nambiar <[email protected]>
Reviewed-by: Alexander Duyck <[email protected]>
Reviewed-by: Sridhar Samudrala <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing and bootconfig updates:
"Fixes and changes to bootconfig before it goes live in a release.
Change in API of bootconfig (before it comes live in a release):
- Have a magic value "BOOTCONFIG" in initrd to know a bootconfig
exists
- Set CONFIG_BOOT_CONFIG to 'n' by default
- Show error if "bootconfig" on cmdline but not compiled in
- Prevent redefining the same value
- Have a way to append values
- Added a SELECT BLK_DEV_INITRD to fix a build failure
Synthetic event fixes:
- Switch to raw_smp_processor_id() for recording CPU value in preempt
section. (No care for what the value actually is)
- Fix samples always recording u64 values
- Fix endianess
- Check number of values matches number of fields
- Fix a printing bug
Fix of trace_printk() breaking postponed start up tests
Make a function static that is only used in a single file"
* tag 'trace-v5.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
bootconfig: Fix CONFIG_BOOTTIME_TRACING dependency issue
bootconfig: Add append value operator support
bootconfig: Prohibit re-defining value on same key
bootconfig: Print array as multiple commands for legacy command line
bootconfig: Reject subkey and value on same parent key
tools/bootconfig: Remove unneeded error message silencer
bootconfig: Add bootconfig magic word for indicating bootconfig explicitly
bootconfig: Set CONFIG_BOOT_CONFIG=n by default
tracing: Clear trace_state when starting trace
bootconfig: Mark boot_config_checksum() static
tracing: Disable trace_printk() on post poned tests
tracing: Have synthetic event test use raw_smp_processor_id()
tracing: Fix number printing bug in print_synth_event()
tracing: Check that number of vals matches number of synth event fields
tracing: Make synth_event trace functions endian-correct
tracing: Make sure synth_event_trace() example always uses u64
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit fixes from Shuah Khan:
"This Kselftest kunit update consists of fixes to documentation and
the run-time tool from Brendan Higgins and Heidi Fahim"
* tag 'linux-kselftest-kunit-5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: run kunit_tool from any directory
kunit: test: Improve error messages for kunit_tool when kunitconfig is invalid
Documentation: kunit: fixed sphinx error in code block
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:
- fixes to TIMEOUT failures and out-of-tree compilation compilation
errors from Michael Ellerman.
- declutter git status fix from Christophe Leroy
* tag 'linux-kselftest-5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/rseq: Fix out-of-tree compilation
selftests: Install settings files to fix TIMEOUT failures
selftest/lkdtm: Don't pollute 'git status'
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This reverts commit ead68df94d248c80fdbae220ae5425eb5af2e753.
Using the -Werror flag breaks the build for me due to mostly harmless
KASAN or similar warnings:
arch/x86/kvm/x86.c: In function ‘kvm_timer_init’:
arch/x86/kvm/x86.c:7209:1: error: the frame size of 1112 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Feel free to add a CONFIG_WERROR if you care strong enough, but don't
break peoples builds for absolutely no good reason.
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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When queueing a signal, we increment both the users count of pending
signals (for RLIMIT_SIGPENDING tracking) and we increment the refcount
of the user struct itself (because we keep a reference to the user in
the signal structure in order to correctly account for it when freeing).
That turns out to be fairly expensive, because both of them are atomic
updates, and particularly under extreme signal handling pressure on big
machines, you can get a lot of cache contention on the user struct.
That can then cause horrid cacheline ping-pong when you do these
multiple accesses.
So change the reference counting to only pin the user for the _first_
pending signal, and to unpin it when the last pending signal is
dequeued. That means that when a user sees a lot of concurrent signal
queuing - which is the only situation when this matters - the only
atomic access needed is generally the 'sigpending' count update.
This was noticed because of a particularly odd timing artifact on a
dual-socket 96C/192T Cascade Lake platform: when you get into bad
contention, on that machine for some reason seems to be much worse when
the contention happens in the upper 32-byte half of the cacheline.
As a result, the kernel test robot will-it-scale 'signal1' benchmark had
an odd performance regression simply due to random alignment of the
'struct user_struct' (and pointed to a completely unrelated and
apparently nonsensical commit for the regression).
Avoiding the double increments (and decrements on the dequeueing side,
of course) makes for much less contention and hugely improved
performance on that will-it-scale microbenchmark.
Quoting Feng Tang:
"It makes a big difference, that the performance score is tripled! bump
from original 17000 to 54000. Also the gap between 5.0-rc6 and
5.0-rc6+Jiri's patch is reduced to around 2%"
[ The "2% gap" is the odd cacheline placement difference on that
platform: under the extreme contention case, the effect of which half
of the cacheline was hot was 5%, so with the reduced contention the
odd timing artifact is reduced too ]
It does help in the non-contended case too, but is not nearly as
noticeable.
Reported-and-tested-by: Feng Tang <[email protected]>
Cc: Eric W. Biederman <[email protected]>
Cc: Huang, Ying <[email protected]>
Cc: Philip Li <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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The dt_binding_check is added to PHONY, but it is invisible when
$(dtstree) is empty. So, it is not specified as phony for
ARCH=x86 etc.
Add it to PHONY outside the ifneq ... endif block.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Rob Herring <[email protected]>
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The dtbs_check should be a phony target, but currently it is not
specified so.
'make dtbs_check' works even if a file named 'dtbs_check' exists
because it depends on another phony target, scripts_dtc, but we
should not rely on it.
Add dtbs_check to PHONY.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Rob Herring <[email protected]>
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This trailing semicolon is unneeded.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Rob Herring <[email protected]>
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This if_change_rule is not working properly; it cannot detect any
command line change.
The reason is because cmd-check in scripts/Kbuild.include compares
$(cmd_$@) and $(cmd_$1), but cmd_dtc_dt_yaml does not exist here.
For if_change_rule to work properly, the stem part of cmd_* and rule_*
must match. Because this cmd_and_fixdep invokes cmd_dtc, this rule must
be named rule_dtc.
Fixes: 4f0e3a57d6eb ("kbuild: Add support for DT binding schema checks")
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Rob Herring <[email protected]>
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This sentence does not make sense in the section about mandatory-y.
This seems to be a copy-paste mistake of commit fcc8487d477a ("uapi:
export all headers under uapi directories").
The correct description would be "The convention is to list one
mandatory-y per line ...".
I just removed it instead of fixing it. If such information is needed,
it could be commented in include/asm-generic/Kbuild and
include/uapi/asm-generic/Kbuild.
Signed-off-by: Masahiro Yamada <[email protected]>
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Complete the comments for valid values of KBUILD_VERBOSE,
specifically for KBUILD_VERBOSE=2.
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Masahiro Yamada <[email protected]>
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Add a specific test for the crash reported by Phil Sutter and addressed
in the previous patch. The test cases that, in my intention, should
have covered these cases, that is, the ones from the 'concurrency'
section, don't run these sequences tightly enough and spectacularly
failed to catch this.
While at it, define a convenient way to add these kind of tests, by
adding a "reported issues" test section.
It's more convenient, for this particular test, to execute the set
setup in its own function. However, future test cases like this one
might need to call setup functions, and will typically need no tools
other than nft, so allow for this in check_tools().
The original form of the reproducer used here was provided by Phil.
Reported-by: Phil Sutter <[email protected]>
Signed-off-by: Stefano Brivio <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Phil reports that adding elements, flushing and re-adding them
right away:
nft add table t '{ set s { type ipv4_addr . inet_service; flags interval; }; }'
nft add element t s '{ 10.0.0.1 . 22-25, 10.0.0.1 . 10-20 }'
nft flush set t s
nft add element t s '{ 10.0.0.1 . 10-20, 10.0.0.1 . 22-25 }'
triggers, almost reliably, a crash like this one:
[ 71.319848] general protection fault, probably for non-canonical address 0x6f6b6e696c2e756e: 0000 [#1] PREEMPT SMP PTI
[ 71.321540] CPU: 3 PID: 1201 Comm: kworker/3:2 Not tainted 5.6.0-rc1-00377-g2bb07f4e1d861 #192
[ 71.322746] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190711_202441-buildvm-armv7-10.arm.fedoraproject.org-2.fc31 04/01/2014
[ 71.324430] Workqueue: events nf_tables_trans_destroy_work [nf_tables]
[ 71.325387] RIP: 0010:nft_set_elem_destroy+0xa5/0x110 [nf_tables]
[ 71.326164] Code: 89 d4 84 c0 74 0e 8b 77 44 0f b6 f8 48 01 df e8 41 ff ff ff 45 84 e4 74 36 44 0f b6 63 08 45 84 e4 74 2c 49 01 dc 49 8b 04 24 <48> 8b 40 38 48 85 c0 74 4f 48 89 e7 4c 8b
[ 71.328423] RSP: 0018:ffffc9000226fd90 EFLAGS: 00010282
[ 71.329225] RAX: 6f6b6e696c2e756e RBX: ffff88813ab79f60 RCX: ffff88813931b5a0
[ 71.330365] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff88813ab79f9a
[ 71.331473] RBP: ffff88813ab79f60 R08: 0000000000000008 R09: 0000000000000000
[ 71.332627] R10: 000000000000021c R11: 0000000000000000 R12: ffff88813ab79fc2
[ 71.333615] R13: ffff88813b3adf50 R14: dead000000000100 R15: ffff88813931b8a0
[ 71.334596] FS: 0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
[ 71.335780] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 71.336577] CR2: 000055ac683710f0 CR3: 000000013a222003 CR4: 0000000000360ee0
[ 71.337533] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 71.338557] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 71.339718] Call Trace:
[ 71.340093] nft_pipapo_destroy+0x7a/0x170 [nf_tables_set]
[ 71.340973] nft_set_destroy+0x20/0x50 [nf_tables]
[ 71.341879] nf_tables_trans_destroy_work+0x246/0x260 [nf_tables]
[ 71.342916] process_one_work+0x1d5/0x3c0
[ 71.343601] worker_thread+0x4a/0x3c0
[ 71.344229] kthread+0xfb/0x130
[ 71.344780] ? process_one_work+0x3c0/0x3c0
[ 71.345477] ? kthread_park+0x90/0x90
[ 71.346129] ret_from_fork+0x35/0x40
[ 71.346748] Modules linked in: nf_tables_set nf_tables nfnetlink 8021q [last unloaded: nfnetlink]
[ 71.348153] ---[ end trace 2eaa8149ca759bcc ]---
[ 71.349066] RIP: 0010:nft_set_elem_destroy+0xa5/0x110 [nf_tables]
[ 71.350016] Code: 89 d4 84 c0 74 0e 8b 77 44 0f b6 f8 48 01 df e8 41 ff ff ff 45 84 e4 74 36 44 0f b6 63 08 45 84 e4 74 2c 49 01 dc 49 8b 04 24 <48> 8b 40 38 48 85 c0 74 4f 48 89 e7 4c 8b
[ 71.350017] RSP: 0018:ffffc9000226fd90 EFLAGS: 00010282
[ 71.350019] RAX: 6f6b6e696c2e756e RBX: ffff88813ab79f60 RCX: ffff88813931b5a0
[ 71.350019] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff88813ab79f9a
[ 71.350020] RBP: ffff88813ab79f60 R08: 0000000000000008 R09: 0000000000000000
[ 71.350021] R10: 000000000000021c R11: 0000000000000000 R12: ffff88813ab79fc2
[ 71.350022] R13: ffff88813b3adf50 R14: dead000000000100 R15: ffff88813931b8a0
[ 71.350025] FS: 0000000000000000(0000) GS:ffff88813bd80000(0000) knlGS:0000000000000000
[ 71.350026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 71.350027] CR2: 000055ac683710f0 CR3: 000000013a222003 CR4: 0000000000360ee0
[ 71.350028] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 71.350028] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 71.350030] Kernel panic - not syncing: Fatal exception
[ 71.350412] Kernel Offset: disabled
[ 71.365922] ---[ end Kernel panic - not syncing: Fatal exception ]---
which is caused by dangling elements that have been deactivated, but
never removed.
On a flush operation, nft_pipapo_walk() walks through all the elements
in the mapping table, which are then deactivated by nft_flush_set(),
one by one, and added to the commit list for removal. Element data is
then freed.
On transaction commit, nft_pipapo_remove() is called, and failed to
remove these elements, leading to the stale references in the mapping.
The first symptom of this, revealed by KASan, is a one-byte
use-after-free in subsequent calls to nft_pipapo_walk(), which is
usually not enough to trigger a panic. When stale elements are used
more heavily, though, such as double-free via nft_pipapo_destroy()
as in Phil's case, the problem becomes more noticeable.
The issue comes from that fact that, on a flush operation,
nft_pipapo_remove() won't get the actual key data via elem->key,
elements to be deleted upon commit won't be found by the lookup via
pipapo_get(), and removal will be skipped. Key data should be fetched
via nft_set_ext_key(), instead.
Reported-by: Phil Sutter <[email protected]>
Fixes: 3c4287f62044 ("nf_tables: Add set type for arbitrary concatenation of ranges")
Signed-off-by: Stefano Brivio <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Jozsef Kadlecsik says:
====================
ipset patches for nf
The first one is larger than usual, but the issue could not be solved simpler.
Also, it's a resend of the patch I submitted a few days ago, with a one line
fix on top of that: the size of the comment extensions was not taken into
account at reporting the full size of the set.
- Fix "INFO: rcu detected stall in hash_xxx" reports of syzbot
by introducing region locking and using workqueue instead of timer based
gc of timed out entries in hash types of sets in ipset.
- Fix the forceadd evaluation path - the bug was also uncovered by the syzbot.
====================
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Since commit d8a953ddde5e ("bootconfig: Set CONFIG_BOOT_CONFIG=n by
default") also changed the CONFIG_BOOTTIME_TRACING to select
CONFIG_BOOT_CONFIG to show the boot-time tracing on the menu,
it introduced wrong dependencies with BLK_DEV_INITRD as below.
WARNING: unmet direct dependencies detected for BOOT_CONFIG
Depends on [n]: BLK_DEV_INITRD [=n]
Selected by [y]:
- BOOTTIME_TRACING [=y] && TRACING_SUPPORT [=y] && FTRACE [=y] && TRACING [=y]
This makes the CONFIG_BOOT_CONFIG selects CONFIG_BLK_DEV_INITRD to
fix this error and make CONFIG_BOOTTIME_TRACING=n by default, so
that both boot-time tracing and boot configuration off but those
appear on the menu list.
Link: http://lkml.kernel.org/r/158264140162.23842.11237423518607465535.stgit@devnote2
Fixes: d8a953ddde5e ("bootconfig: Set CONFIG_BOOT_CONFIG=n by default")
Reported-by: Randy Dunlap <[email protected]>
Compiled-tested-by: Randy Dunlap <[email protected]>
Signed-off-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
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The icmpv6_send function has long had a static inline implementation
with an empty body for CONFIG_IPV6=n, so that code calling it doesn't
need to be ifdef'd. The new icmpv6_ndo_send function, which is intended
for drivers as a drop-in replacement with an identical function
signature, should follow the same pattern. Without this patch, drivers
that used to work with CONFIG_IPV6=n now result in a linker error.
Cc: Chen Zhou <[email protected]>
Reported-by: Hulk Robot <[email protected]>
Fixes: 0b41713b6066 ("icmp: introduce helper for nat'd source address in network device context")
Signed-off-by: Jason A. Donenfeld <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
"This contains a handful of RISC-V related fixes that I've collected
and would like to target for 5.6-rc4:
- A fix to set up the PMPs on boot, which allows the kernel to access
memory on systems that don't set up permissive PMPs before getting
to Linux. This only effects machine-mode kernels, which currently
means only NOMMU kernels.
- A fix to avoid enabling supervisor-mode interrupts when running in
machine-mode, also only for NOMMU kernels.
- A pair of fixes to our KASAN support to avoid corrupting memory.
- A gitignore fix.
This boots on QEMU's virt board for me"
* tag 'riscv-for-linux-5.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: adjust the indent
riscv: allocate a complete page size for each page table
riscv: Fix gitignore
RISC-V: Don't enable all interrupts in trap_init()
riscv: set pmp configuration if kernel is running in M-mode
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"Here are a few MIPS fixes, and a MAINTAINERS update to hand over MIPS
maintenance to Thomas Bogendoerfer - this will be my final pull
request as MIPS maintainer.
Thanks for your helpful comments, useful corrections & responsiveness
during the time I've fulfilled the role, and I'm sure I'll pop up
elsewhere in the tree somewhere down the line"
* 'mips-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MAINTAINERS: Hand MIPS over to Thomas
MIPS: ingenic: DTS: Fix watchdog nodes
MIPS: X1000: Fix clock of watchdog node.
MIPS: vdso: Wrap -mexplicit-relocs in cc-option
MIPS: VPE: Fix a double free and a memory leak in 'release_vpe()'
MIPS: cavium_octeon: Fix syncw generation.
mips: vdso: add build time check that no 'jalr t9' calls left
MIPS: Disable VDSO time functionality on microMIPS
mips: vdso: fix 'jalr t9' crash in vdso code
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Before nftables commit fb9cea50e8b3 ("main: enforce options before
commands"), 'nft list ruleset -a' happened to work, but it's wrong
and won't work anymore. Replace it by 'nft -a list ruleset'.
Reported-by: Chen Yi <[email protected]>
Fixes: 611973c1e06f ("selftests: netfilter: Introduce tests for sets with range concatenation")
Signed-off-by: Stefano Brivio <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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When there was no parallelism (no top-level -j arg and a pre-1.7
sphinx-build), the argument passed would be empty ("") instead of just
being missing, which would (understandably) badly confuse sphinx-build.
Fix this by removing the quotes.
Reported-by: Rafael J. Wysocki <[email protected]>
Fixes: 51e46c7a4007 ("docs, parallelism: Rearrange how jobserver reservations are made")
Cc: [email protected] # v5.5 only
Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
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MPX was removed in commit 45fc24e89b7c ("x86/mpx: remove MPX from
arch/x86"), this removes the corresponding entry in the x86 toc.
This was suggested by a Sphinx warning.
Signed-off-by: Stephen Kitt <[email protected]>
Fixes: 45fc24e89b7cc ("x86/mpx: remove MPX from arch/x86")
Acked-by: Dave Hansen <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
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My time with MIPS the company has reached its end, and so at best I'll
have little time spend on maintaining arch/mips/.
Ralf last authored a patch over 2 years ago, the last time he committed
one is even further back & activity was sporadic for a while before
that. The reality is that he isn't active.
Having a new maintainer with time to do things properly will be
beneficial all round. Thomas Bogendoerfer has been involved in MIPS
development for a long time & has offered to step up as maintainer, so
add Thomas and remove myself & Ralf from the MIPS entry.
Ralf already has an entry in CREDITS to honor his contributions, so this
just adds one for me.
Signed-off-by: Paul Burton <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Acked-by: Thomas Bogendoerfer <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: [email protected]
Cc: [email protected]
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg
====================
A few fixes:
* remove a double mutex-unlock
* fix a leak in an error path
* NULL pointer check
* include if_vlan.h where needed
* avoid RCU list traversal when not under RCU
====================
Signed-off-by: David S. Miller <[email protected]>
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This patch ensures that we always check the netlink payload length
in audit_receive_msg() before we take any action on the payload
itself.
Cc: [email protected]
Reported-by: [email protected]
Reported-by: [email protected]
Signed-off-by: Paul Moore <[email protected]>
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Adjust the indent to match Linux coding style.
Signed-off-by: Zong Li <[email protected]>
Signed-off-by: Palmer Dabbelt <[email protected]>
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Each page table should be created by allocating a complete page size
for it. Otherwise, the content of the page table would be corrupted
somewhere through memory allocation which allocates the memory at the
middle of the page table for other use.
Signed-off-by: Zong Li <[email protected]>
Signed-off-by: Palmer Dabbelt <[email protected]>
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Pull kvm fixes from Paolo Bonzini:
"Bugfixes, including the fix for CVE-2020-2732 and a few issues found
by 'make W=1'"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: s390: rstify new ioctls in api.rst
KVM: nVMX: Check IO instruction VM-exit conditions
KVM: nVMX: Refactor IO bitmap checks into helper function
KVM: nVMX: Don't emulate instructions in guest mode
KVM: nVMX: Emulate MTF when performing instruction emulation
KVM: fix error handling in svm_hardware_setup
KVM: SVM: Fix potential memory leak in svm_cpu_init()
KVM: apic: avoid calculating pending eoi from an uninitialized val
KVM: nVMX: clear PIN_BASED_POSTED_INTR from nested pinbased_ctls only when apicv is globally disabled
KVM: nVMX: handle nested posted interrupts when apicv is disabled for L1
kvm: x86: svm: Fix NULL pointer dereference when AVIC not enabled
KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE
KVM: nVMX: Hold KVM's srcu lock when syncing vmcs12->shadow
KVM: x86: don't notify userspace IOAPIC on edge-triggered interrupt EOI
kvm/emulate: fix a -Werror=cast-function-type
KVM: x86: fix incorrect comparison in trace event
KVM: nVMX: Fix some obsolete comments and grammar error
KVM: x86: fix missing prototypes
KVM: x86: enable -Werror
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"This fixes a Kconfig-related build error and an integer overflow in
chacha20poly1305"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: chacha20poly1305 - prevent integer overflow on large input
tee: amdtee: amdtee depends on CRYPTO_DEV_CCP_DD
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Pull tmpfs fix from Al Viro:
"Regression from fs_parse series this cycle..."
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
tmpfs: deny and force are not huge mount options
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Jordy Zomer reported a KASAN out-of-bounds read in the floppy driver in
wait_til_ready().
Which on the face of it can't happen, since as Willy Tarreau points out,
the function does no particular memory access. Except through the FDCS
macro, which just indexes a static allocation through teh current fdc,
which is always checked against N_FDC.
Except the checking happens after we've already assigned the value.
The floppy driver is a disgrace (a lot of it going back to my original
horrd "design"), and has no real maintainer. Nobody has the hardware,
and nobody really cares. But it still gets used in virtual environment
because it's one of those things that everybody supports.
The whole thing should be re-written, or at least parts of it should be
seriously cleaned up. The 'current fdc' index, which is used by the
FDCS macro, and which is often shadowed by a local 'fdc' variable, is a
prime example of how not to write code.
But because nobody has the hardware or the motivation, let's just fix up
the immediate problem with a nasty band-aid: test the fdc index before
actually assigning it to the static 'fdc' variable.
Reported-by: Jordy Zomer <[email protected]>
Cc: Willy Tarreau <[email protected]>
Cc: Dan Carpenter <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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In br_dev_xmit() we perform vlan filtering in br_allowed_ingress() but
if the packet has the vlan header inside (e.g. bridge with disabled
tx-vlan-offload) then the vlan filtering code will use skb_vlan_untag()
to extract the vid before filtering which in turn calls pskb_may_pull()
and we may end up with a stale eth pointer. Moreover the cached eth header
pointer will generally be wrong after that operation. Remove the eth header
caching and just use eth_hdr() directly, the compiler does the right thing
and calculates it only once so we don't lose anything.
Fixes: 057658cb33fb ("bridge: suppress arp pkts on BR_NEIGH_SUPPRESS ports")
Signed-off-by: Nikolay Aleksandrov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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