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2022-08-24fbdev: omapfb: Fix tests for platform_get_irq() failureYu Zhe1-2/+2
The platform_get_irq() returns negative error codes. It can't actually return zero. Signed-off-by: Yu Zhe <[email protected]> Signed-off-by: Helge Deller <[email protected]>
2022-08-24i40e: Fix incorrect address type for IPv6 flow rulesSylwester Dziedziuch1-1/+1
It was not possible to create 1-tuple flow director rule for IPv6 flow type. It was caused by incorrectly checking for source IP address when validating user provided destination IP address. Fix this by changing ip6src to correct ip6dst address in destination IP address validation for IPv6 flow type. Fixes: efca91e89b67 ("i40e: Add flow director support for IPv6") Signed-off-by: Sylwester Dziedziuch <[email protected]> Tested-by: Gurucharan <[email protected]> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <[email protected]>
2022-08-24ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounterJacob Keller1-13/+46
The ixgbe_ptp_start_cyclecounter is intended to be called whenever the cyclecounter parameters need to be changed. Since commit a9763f3cb54c ("ixgbe: Update PTP to support X550EM_x devices"), this function has cleared the SYSTIME registers and reset the TSAUXC DISABLE_SYSTIME bit. While these need to be cleared during ixgbe_ptp_reset, it is wrong to clear them during ixgbe_ptp_start_cyclecounter. This function may be called during both reset and link status change. When link changes, the SYSTIME counter is still operating normally, but the cyclecounter should be updated to account for the possibly changed parameters. Clearing SYSTIME when link changes causes the timecounter to jump because the cycle counter now reads zero. Extract the SYSTIME initialization out to a new function and call this during ixgbe_ptp_reset. This prevents the timecounter adjustment and avoids an unnecessary reset of the current time. This also restores the original SYSTIME clearing that occurred during ixgbe_ptp_reset before the commit above. Reported-by: Steve Payne <[email protected]> Reported-by: Ilya Evenbach <[email protected]> Fixes: a9763f3cb54c ("ixgbe: Update PTP to support X550EM_x devices") Signed-off-by: Jacob Keller <[email protected]> Tested-by: Gurucharan <[email protected]> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <[email protected]>
2022-08-24md: call __md_stop_writes in md_stopGuoqing Jiang1-0/+1
From the link [1], we can see raid1d was running even after the path raid_dtr -> md_stop -> __md_stop. Let's stop write first in destructor to align with normal md-raid to fix the KASAN issue. [1]. https://lore.kernel.org/linux-raid/CAPhsuW5gc4AakdGNdF8ubpezAuDLFOYUO_sfMZcec6hQFm8nhg@mail.gmail.com/T/#m7f12bf90481c02c6d2da68c64aeed4779b7df74a Fixes: 48df498daf62 ("md: move bitmap_destroy to the beginning of __md_stop") Reported-by: Mikulas Patocka <[email protected]> Signed-off-by: Guoqing Jiang <[email protected]> Signed-off-by: Song Liu <[email protected]>
2022-08-24Revert "md-raid: destroy the bitmap after destroying the thread"Guoqing Jiang1-1/+1
This reverts commit e151db8ecfb019b7da31d076130a794574c89f6f. Because it obviously breaks clustered raid as noticed by Neil though it fixed KASAN issue for dm-raid, let's revert it and fix KASAN issue in next commit. [1]. https://lore.kernel.org/linux-raid/[email protected]/T/#m95ac225cab7409f66c295772483d091084a6d470 Fixes: e151db8ecfb0 ("md-raid: destroy the bitmap after destroying the thread") Signed-off-by: Guoqing Jiang <[email protected]> Signed-off-by: Song Liu <[email protected]>
2022-08-24Merge tag 'trace-v6.0-rc2' of ↵Linus Torvalds1-46/+33
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: - Fix build warning for when MODULES and FTRACE_WITH_DIRECT_CALLS are not set. A warning happens with ops_references_rec() defined but not used. * tag 'trace-v6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace: Fix build warning for ops_references_rec() not used
2022-08-24md: Flush workqueue md_rdev_misc_wq in md_alloc()David Sloan1-0/+1
A race condition still exists when removing and re-creating md devices in test cases. However, it is only seen on some setups. The race condition was tracked down to a reference still being held to the kobject by the rdev in the md_rdev_misc_wq which will be released in rdev_delayed_delete(). md_alloc() waits for previous deletions by waiting on the md_misc_wq, but the md_rdev_misc_wq may still be holding a reference to a recently removed device. To fix this, also flush the md_rdev_misc_wq in md_alloc(). Signed-off-by: David Sloan <[email protected]> [[email protected]: rewrote commit message] Signed-off-by: Logan Gunthorpe <[email protected]> Signed-off-by: Song Liu <[email protected]>
2022-08-24md/raid10: Fix the data type of an r10_sync_page_io() argumentBart Van Assche1-7/+6
Fix the following sparse warning: drivers/md/raid10.c:2647:60: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected restricted blk_opf_t [usertype] opf @@ got int rw @@ This patch does not change any functionality since REQ_OP_READ = READ = 0 and since REQ_OP_WRITE = WRITE = 1. Cc: Rong A Chen <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Paul Menzel <[email protected]> Fixes: 4ce4c73f662b ("md/core: Combine two sync_page_io() arguments") Reported-by: kernel test robot <[email protected]> Signed-off-by: Bart Van Assche <[email protected]> Signed-off-by: Song Liu <[email protected]>
2022-08-24cifs: skip extra NULL byte in filenamesPaulo Alcantara1-10/+6
Since commit: cifs: alloc_path_with_tree_prefix: do not append sep. if the path is empty alloc_path_with_tree_prefix() function was no longer including the trailing separator when @path is empty, although @out_len was still assuming a path separator thus adding an extra byte to the final filename. This has caused mount issues in some Synology servers due to the extra NULL byte in filenames when sending SMB2_CREATE requests with SMB2_FLAGS_DFS_OPERATIONS set. Fix this by checking if @path is not empty and then add extra byte for separator. Also, do not include any trailing NULL bytes in filename as MS-SMB2 requires it to be 8-byte aligned and not NULL terminated. Cc: [email protected] Fixes: 7eacba3b00a3 ("cifs: alloc_path_with_tree_prefix: do not append sep. if the path is empty") Signed-off-by: Paulo Alcantara (SUSE) <[email protected]> Signed-off-by: Steve French <[email protected]>
2022-08-24Merge branch 'dmi-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull dmi update from Jean Delvare. Tiny cleanup. * 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: firmware: dmi: Use the proper accessor for the version field
2022-08-24lib/cpumask_kunit: add tests file to MAINTAINERSSander Vanheule1-0/+1
cpumask related files are listed under the BITMAP API section, so the file with tests for cpumask should be added to that list. Signed-off-by: Sander Vanheule <[email protected]> Reviewed-by: David Gow <[email protected]> Acked-by: Yury Norov <[email protected]> Signed-off-by: Yury Norov <[email protected]>
2022-08-24lib/cpumask_kunit: log mask contentsSander Vanheule1-20/+31
For extra context, log the contents of the masks under test. This should help with finding out why a certain test fails. Link: https://lore.kernel.org/lkml/CABVgOSkPXBc-PWk1zBZRQ_Tt+Sz1ruFHBj3ixojymZF=Vi4tpQ@mail.gmail.com/ Suggested-by: David Gow <[email protected]> Signed-off-by: Sander Vanheule <[email protected]> Signed-off-by: Yury Norov <[email protected]>
2022-08-24lib/test_cpumask: follow KUnit style guidelinesSander Vanheule3-3/+6
The cpumask test suite doesn't follow the KUnit style guidelines, as laid out in Documentation/dev-tools/kunit/style.rst. The file is renamed to lib/cpumask_kunit.c to clearly distinguish it from other, non-KUnit, tests. Link: https://lore.kernel.org/lkml/[email protected]/ Suggested-by: Maíra Canal <[email protected]> Signed-off-by: Sander Vanheule <[email protected]> Reviewed-by: Maíra Canal <[email protected]> Reviewed-by: David Gow <[email protected]> Acked-by: Yury Norov <[email protected]> Signed-off-by: Yury Norov <[email protected]>
2022-08-24lib/test_cpumask: fix cpu_possible_mask last testSander Vanheule1-1/+1
Since cpumask_first() on the cpu_possible_mask must return at most nr_cpu_ids - 1 for a valid result, cpumask_last() cannot return anything larger than this value. As test_cpumask_weight() also verifies that the total weight of cpu_possible_mask must equal nr_cpu_ids, the last bit set in this mask must be at nr_cpu_ids - 1. Fixes: c41e8866c28c ("lib/test: introduce cpumask KUnit test suite") Link: https://lore.kernel.org/lkml/[email protected]/ Reported-by: Maíra Canal <[email protected]> Signed-off-by: Sander Vanheule <[email protected]> Tested-by: Maíra Canal <[email protected]> Reviewed-by: David Gow <[email protected]> Acked-by: Yury Norov <[email protected]> Signed-off-by: Yury Norov <[email protected]>
2022-08-24lib/test_cpumask: drop cpu_possible_mask full testSander Vanheule1-1/+0
When the number of CPUs that can possibly be brought online is known at boot time, e.g. when HOTPLUG is disabled, nr_cpu_ids may be smaller than NR_CPUS. In that case, cpu_possible_mask would not be completely filled, and cpumask_full(cpu_possible_mask) can return false for valid system configurations. Without this test, cpu_possible_mask contents are still constrained by a check on cpumask_weight(), as well as tests in test_cpumask_first(), test_cpumask_last(), test_cpumask_next(), and test_cpumask_iterators(). Fixes: c41e8866c28c ("lib/test: introduce cpumask KUnit test suite") Link: https://lore.kernel.org/lkml/[email protected]/ Reported-by: Maíra Canal <[email protected]> Signed-off-by: Sander Vanheule <[email protected]> Tested-by: Maíra Canal <[email protected]> Reviewed-by: David Gow <[email protected]> Signed-off-by: Yury Norov <[email protected]>
2022-08-24io_uring: conditional ->async_data allocationPavel Begunkov2-3/+6
There are opcodes that need ->async_data only in some cases and allocation it unconditionally may hurt performance. Add an option to opdef to make move the allocation part from the core io_uring to opcode specific code. Note, we can't just set opdef->async_size to zero because there are other helpers that rely on it, e.g. io_alloc_async_data(). Signed-off-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/9dc62be9e88dd0ed63c48365340e8922d2498293.1661342812.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <[email protected]>
2022-08-24io_uring/notif: order notif vs send CQEsPavel Begunkov1-2/+4
Currently, there is no ordering between notification CQEs and completions of the send flushing it, this quite complicates the userspace, especially since we don't flush notification when the send(+flush) request fails, i.e. there will be only one CQE. What we can do is to make sure that notification completions come only after sends. The easiest way to achieve this is to not try to complete a notification inline from io_sendzc() but defer it to task_work, considering that io-wq sendzc is disallowed CQEs will be naturally ordered because task_works will only be executed after we're done with submission and so inline completion. Signed-off-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/cddfd1c2bf91f22b9fe08e13b7dffdd8f858a151.1661342812.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <[email protected]>
2022-08-24io_uring/net: fix indentationPavel Begunkov1-1/+1
Fix up indentation before we get complaints from tooling. Signed-off-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/bd5754e3764215ccd7fb04cd636ea9167aaa275d.1661342812.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <[email protected]>
2022-08-24io_uring/net: fix zc send link failingPavel Begunkov1-0/+1
Failed requests should be marked with req_set_fail(), so links and cqe skipping work correctly, which is missing in io_sendzc(). Note, io_sendzc() return IOU_OK on failure, so the core code won't do the cleanup for us. Fixes: 06a5464be84e4 ("io_uring: wire send zc request type") Signed-off-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/e47d46fda9db30154ce66a549bb0d3380b780520.1661342812.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <[email protected]>
2022-08-24io_uring/net: fix must_hold annotationPavel Begunkov1-1/+1
Fix up the io_alloc_notif()'s __must_hold as we don't have a ctx argument there but should get it from the slot instead. Reported-by: Stefan Metzmacher <[email protected]> Signed-off-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/cbb0a920f18e0aed590bf58300af817b9befb8a3.1661342812.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <[email protected]>
2022-08-24loop: Check for overflow while configuring loopSiddh Raman Pant1-0/+5
The userspace can configure a loop using an ioctl call, wherein a configuration of type loop_config is passed (see lo_ioctl()'s case on line 1550 of drivers/block/loop.c). This proceeds to call loop_configure() which in turn calls loop_set_status_from_info() (see line 1050 of loop.c), passing &config->info which is of type loop_info64*. This function then sets the appropriate values, like the offset. loop_device has lo_offset of type loff_t (see line 52 of loop.c), which is typdef-chained to long long, whereas loop_info64 has lo_offset of type __u64 (see line 56 of include/uapi/linux/loop.h). The function directly copies offset from info to the device as follows (See line 980 of loop.c): lo->lo_offset = info->lo_offset; This results in an overflow, which triggers a warning in iomap_iter() due to a call to iomap_iter_done() which has: WARN_ON_ONCE(iter->iomap.offset > iter->pos); Thus, check for negative value during loop_set_status_from_info(). Bug report: https://syzkaller.appspot.com/bug?id=c620fe14aac810396d3c3edc9ad73848bf69a29e Reported-and-tested-by: [email protected] Cc: [email protected] Reviewed-by: Matthew Wilcox (Oracle) <[email protected]> Signed-off-by: Siddh Raman Pant <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
2022-08-24Merge branch 'sysctl-data-races'David S. Miller25-68/+98
Kuniyuki Iwashima says: ==================== net: sysctl: Fix data-races around net.core.XXX This series fixes data-races around all knobs in net_core_table and netns_core_table except for bpf stuff. These knobs are skipped: - 4 bpf knobs - netdev_rss_key: Written only once by net_get_random_once() and read-only knob - rps_sock_flow_entries: Protected with sock_flow_mutex - flow_limit_cpu_bitmap: Protected with flow_limit_update_mutex - flow_limit_table_len: Protected with flow_limit_update_mutex - default_qdisc: Protected with qdisc_mod_lock - warnings: Unused - high_order_alloc_disable: Protected with static_key_mutex - skb_defer_max: Already using READ_ONCE() - sysctl_txrehash: Already using READ_ONCE() Note 5th patch fixes net.core.message_cost and net.core.message_burst, and lib/ratelimit.c does not have an explicit maintainer. Changes: v3: * Fix build failures of CONFIG_SYSCTL=n case in 13th & 14th patches v2: https://lore.kernel.org/netdev/[email protected]/ * Remove 4 bpf knobs and added 6 knobs v1: https://lore.kernel.org/netdev/[email protected]/ ==================== Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around sysctl_somaxconn.Kuniyuki Iwashima1-1/+1
While reading sysctl_somaxconn, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around netdev_unregister_timeout_secs.Kuniyuki Iwashima1-1/+1
While reading netdev_unregister_timeout_secs, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 5aa3afe107d9 ("net: make unregister netdev warning timeout configurable") Signed-off-by: Kuniyuki Iwashima <[email protected]> Acked-by: Dmitry Vyukov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around gro_normal_batch.Kuniyuki Iwashima1-1/+1
While reading gro_normal_batch, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 323ebb61e32b ("net: use listified RX for handling GRO_NORMAL skbs") Signed-off-by: Kuniyuki Iwashima <[email protected]> Acked-by: Edward Cree <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around sysctl_devconf_inherit_init_net.Kuniyuki Iwashima3-9/+21
While reading sysctl_devconf_inherit_init_net, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 856c395cfa63 ("net: introduce a knob to control whether to inherit devconf config") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around sysctl_fb_tunnels_only_for_init_net.Kuniyuki Iwashima1-3/+8
While reading sysctl_fb_tunnels_only_for_init_net, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 79134e6ce2c9 ("net: do not create fallback tunnels for non-default namespaces") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around netdev_budget_usecs.Kuniyuki Iwashima1-1/+1
While reading netdev_budget_usecs, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 7acf8a1e8a28 ("Replace 2 jiffies with sysctl netdev_budget_usecs to enable softirq tuning") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around sysctl_max_skb_frags.Kuniyuki Iwashima2-3/+3
While reading sysctl_max_skb_frags, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 5f74f82ea34c ("net:Add sysctl_max_skb_frags") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around netdev_budget.Kuniyuki Iwashima1-1/+1
While reading netdev_budget, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 51b0bdedb8e7 ("[NET]: Separate two usages of netdev_max_backlog.") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around sysctl_net_busy_read.Kuniyuki Iwashima1-1/+1
While reading sysctl_net_busy_read, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 2d48d67fa8cd ("net: poll/select low latency socket support") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around sysctl_net_busy_poll.Kuniyuki Iwashima1-1/+1
While reading sysctl_net_busy_poll, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 060212928670 ("net: add low latency socket poll") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix a data-race around sysctl_tstamp_allow_data.Kuniyuki Iwashima1-1/+1
While reading sysctl_tstamp_allow_data, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: b245be1f4db1 ("net-timestamp: no-payload only sysctl") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around sysctl_optmem_max.Kuniyuki Iwashima5-14/+18
While reading sysctl_optmem_max, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24ratelimit: Fix data-races in ___ratelimit().Kuniyuki Iwashima1-3/+9
While reading rs->interval and rs->burst, they can be changed concurrently via sysctl (e.g. net_ratelimit_state). Thus, we need to add READ_ONCE() to their readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around netdev_tstamp_prequeue.Kuniyuki Iwashima1-4/+4
While reading netdev_tstamp_prequeue, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 3b098e2d7c69 ("net: Consistent skb timestamping") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around netdev_max_backlog.Kuniyuki Iwashima5-6/+6
While reading netdev_max_backlog, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. While at it, we remove the unnecessary spaces in the doc. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around weight_p and dev_weight_[rt]x_bias.Kuniyuki Iwashima3-8/+11
While reading weight_p, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Also, dev_[rt]x_weight can be read/written at the same time. So, we need to use READ_ONCE() and WRITE_ONCE() for its access. Moreover, to use the same weight_p while changing dev_[rt]x_weight, we add a mutex in proc_do_dev_weight(). Fixes: 3d48b53fb2ae ("net: dev_weight: TX/RX orthogonality") Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: Fix data-races around sysctl_[rw]mem_(max|default).Kuniyuki Iwashima5-10/+10
While reading sysctl_[rw]mem_(max|default), they can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net/core/skbuff: Check the return value of skb_copy_bits()lily1-3/+2
skb_copy_bits() could fail, which requires a check on the return value. Signed-off-by: Li Zhong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24Merge branch 'master' of ↵David S. Miller6-4/+7
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2022-08-24 1) Fix a refcount leak in __xfrm_policy_check. From Xin Xiong. 2) Revert "xfrm: update SA curlft.use_time". This violates RFC 2367. From Antony Antony. 3) Fix a comment on XFRMA_LASTUSED. From Antony Antony. 4) x->lastused is not cloned in xfrm_do_migrate. Fix from Antony Antony. 5) Serialize the calls to xfrm_probe_algs. From Herbert Xu. 6) Fix a null pointer dereference of dst->dev on a metadata dst in xfrm_lookup_with_ifid. From Nikolay Aleksandrov. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <[email protected]>
2022-08-24fec: Restart PPS after link state changeCsókás Bence3-4/+77
On link state change, the controller gets reset, causing PPS to drop out and the PHC to lose its time and calibration. So we restart it if needed, restoring calibration and time registers. Changes since v2: * Add `fec_ptp_save_state()`/`fec_ptp_restore_state()` * Use `ktime_get_real_ns()` * Use `BIT()` macro Changes since v1: * More ECR #define's * Stop PPS in `fec_ptp_stop()` Signed-off-by: Csókás Bence <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24net: neigh: don't call kfree_skb() under spin_lock_irqsave()Yang Yingliang1-3/+9
It is not allowed to call kfree_skb() from hardware interrupt context or with interrupts being disabled. So add all skb to a tmp list, then free them after spin_unlock_irqrestore() at once. Fixes: 66ba215cb513 ("neigh: fix possible DoS due to net iface start/stop loop") Suggested-by: Denis V. Lunev <[email protected]> Signed-off-by: Yang Yingliang <[email protected]> Reviewed-by: Nikolay Aleksandrov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2022-08-24x86/sev: Don't use cc_platform_has() for early SEV-SNP callsTom Lendacky1-2/+14
When running identity-mapped and depending on the kernel configuration, it is possible that the compiler uses jump tables when generating code for cc_platform_has(). This causes a boot failure because the jump table uses un-mapped kernel virtual addresses, not identity-mapped addresses. This has been seen with CONFIG_RETPOLINE=n. Similar to sme_encrypt_kernel(), use an open-coded direct check for the status of SNP rather than trying to eliminate the jump table. This preserves any code optimization in cc_platform_has() that can be useful post boot. It also limits the changes to SEV-specific files so that future compiler features won't necessarily require possible build changes just because they are not compatible with running identity-mapped. [ bp: Massage commit message. ] Fixes: 5e5ccff60a29 ("x86/sev: Add helper for validating pages in early enc attribute changes") Reported-by: Sean Christopherson <[email protected]> Suggested-by: Sean Christopherson <[email protected]> Signed-off-by: Tom Lendacky <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: <[email protected]> # 5.19.x Link: https://lore.kernel.org/all/[email protected]/
2022-08-24x86/boot: Don't propagate uninitialized boot_params->cc_blob_addressMichael Roth2-1/+19
In some cases, bootloaders will leave boot_params->cc_blob_address uninitialized rather than zeroing it out. This field is only meant to be set by the boot/compressed kernel in order to pass information to the uncompressed kernel when SEV-SNP support is enabled. Therefore, there are no cases where the bootloader-provided values should be treated as anything other than garbage. Otherwise, the uncompressed kernel may attempt to access this bogus address, leading to a crash during early boot. Normally, sanitize_boot_params() would be used to clear out such fields but that happens too late: sev_enable() may have already initialized it to a valid value that should not be zeroed out. Instead, have sev_enable() zero it out unconditionally beforehand. Also ensure this happens for !CONFIG_AMD_MEM_ENCRYPT as well by also including this handling in the sev_enable() stub function. [ bp: Massage commit message and comments. ] Fixes: b190a043c49a ("x86/sev: Add SEV-SNP feature detection/setup") Reported-by: Jeremi Piotrowski <[email protected]> Reported-by: [email protected] Signed-off-by: Michael Roth <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Cc: [email protected] Link: https://bugzilla.kernel.org/show_bug.cgi?id=216387 Link: https://lore.kernel.org/r/[email protected]
2022-08-24netfilter: nf_defrag_ipv6: allow nf_conntrack_frag6_high_thresh increasesEric Dumazet1-1/+0
Currently, net.netfilter.nf_conntrack_frag6_high_thresh can only be lowered. I found this issue while investigating a probable kernel issue causing flakes in tools/testing/selftests/net/ip_defrag.sh In particular, these sysctl changes were ignored: ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_high_thresh=9000000 >/dev/null 2>&1 ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_low_thresh=7000000 >/dev/null 2>&1 This change is inline with commit 836196239298 ("net/ipfrag: let ip[6]frag_high_thresh in ns be higher than in init_net") Fixes: 8db3d41569bb ("netfilter: nf_defrag_ipv6: use net_generic infra") Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2022-08-24netfilter: flowtable: fix stuck flows on cleanup due to pending workPablo Neira Ayuso3-4/+13
To clear the flow table on flow table free, the following sequence normally happens in order: 1) gc_step work is stopped to disable any further stats/del requests. 2) All flow table entries are set to teardown state. 3) Run gc_step which will queue HW del work for each flow table entry. 4) Waiting for the above del work to finish (flush). 5) Run gc_step again, deleting all entries from the flow table. 6) Flow table is freed. But if a flow table entry already has pending HW stats or HW add work step 3 will not queue HW del work (it will be skipped), step 4 will wait for the pending add/stats to finish, and step 5 will queue HW del work which might execute after freeing of the flow table. To fix the above, this patch flushes the pending work, then it sets the teardown flag to all flows in the flowtable and it forces a garbage collector run to queue work to remove the flows from hardware, then it flushes this new pending work and (finally) it forces another garbage collector run to remove the entry from the software flowtable. Stack trace: [47773.882335] BUG: KASAN: use-after-free in down_read+0x99/0x460 [47773.883634] Write of size 8 at addr ffff888103b45aa8 by task kworker/u20:6/543704 [47773.885634] CPU: 3 PID: 543704 Comm: kworker/u20:6 Not tainted 5.12.0-rc7+ #2 [47773.886745] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009) [47773.888438] Workqueue: nf_ft_offload_del flow_offload_work_handler [nf_flow_table] [47773.889727] Call Trace: [47773.890214] dump_stack+0xbb/0x107 [47773.890818] print_address_description.constprop.0+0x18/0x140 [47773.892990] kasan_report.cold+0x7c/0xd8 [47773.894459] kasan_check_range+0x145/0x1a0 [47773.895174] down_read+0x99/0x460 [47773.899706] nf_flow_offload_tuple+0x24f/0x3c0 [nf_flow_table] [47773.907137] flow_offload_work_handler+0x72d/0xbe0 [nf_flow_table] [47773.913372] process_one_work+0x8ac/0x14e0 [47773.921325] [47773.921325] Allocated by task 592159: [47773.922031] kasan_save_stack+0x1b/0x40 [47773.922730] __kasan_kmalloc+0x7a/0x90 [47773.923411] tcf_ct_flow_table_get+0x3cb/0x1230 [act_ct] [47773.924363] tcf_ct_init+0x71c/0x1156 [act_ct] [47773.925207] tcf_action_init_1+0x45b/0x700 [47773.925987] tcf_action_init+0x453/0x6b0 [47773.926692] tcf_exts_validate+0x3d0/0x600 [47773.927419] fl_change+0x757/0x4a51 [cls_flower] [47773.928227] tc_new_tfilter+0x89a/0x2070 [47773.936652] [47773.936652] Freed by task 543704: [47773.937303] kasan_save_stack+0x1b/0x40 [47773.938039] kasan_set_track+0x1c/0x30 [47773.938731] kasan_set_free_info+0x20/0x30 [47773.939467] __kasan_slab_free+0xe7/0x120 [47773.940194] slab_free_freelist_hook+0x86/0x190 [47773.941038] kfree+0xce/0x3a0 [47773.941644] tcf_ct_flow_table_cleanup_work Original patch description and stack trace by Paul Blakey. Fixes: c29f74e0df7a ("netfilter: nf_flow_table: hardware offload support") Reported-by: Paul Blakey <[email protected]> Tested-by: Paul Blakey <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2022-08-24netfilter: flowtable: add function to invoke garbage collection immediatelyPablo Neira Ayuso2-3/+10
Expose nf_flow_table_gc_run() to force a garbage collector run from the offload infrastructure. Signed-off-by: Pablo Neira Ayuso <[email protected]>
2022-08-24netfilter: nf_tables: disallow binding to already bound chainPablo Neira Ayuso1-0/+2
Update nft_data_init() to report EINVAL if chain is already bound. Fixes: d0e2c7de92c7 ("netfilter: nf_tables: add NFT_CHAIN_BINDING") Reported-by: Gwangun Jung <[email protected]> Signed-off-by: Pablo Neira Ayuso <[email protected]>
2022-08-24netfilter: nft_tunnel: restrict it to netdev familyPablo Neira Ayuso1-0/+1
Only allow to use this expression from NFPROTO_NETDEV family. Fixes: af308b94a2a4 ("netfilter: nf_tables: add tunnel support") Signed-off-by: Pablo Neira Ayuso <[email protected]>
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