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2021-10-10bootconfig: Cleanup dummy headers in tools/bootconfigMasami Hiramatsu1-5/+38
Cleanup dummy headers in tools/bootconfig/include except for tools/bootconfig/include/linux/bootconfig.h. For this change, I use __KERNEL__ macro to split kernel header #include and introduce xbc_alloc_mem() and xbc_free_mem(). Link: https://lkml.kernel.org/r/163187299574.2366983.18371329724128746091.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Replace u16 and u32 with uint16_t and uint32_tMasami Hiramatsu1-8/+8
Replace u16 and u32 with uint16_t and uint32_t so that the tools/bootconfig only needs <stdint.h>. Link: https://lkml.kernel.org/r/163187298835.2366983.9838262576854319669.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Remove unused debug functionMasami Hiramatsu1-21/+0
Remove unused xbc_debug_dump() from bootconfig for clean up the code. Link: https://lkml.kernel.org/r/163187297371.2366983.12943349701785875450.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Split parse-tree part from xbc_initMasami Hiramatsu1-45/+54
Split bootconfig data parser to build tree code from xbc_init(). This is an internal cosmetic change. Link: https://lkml.kernel.org/r/163187296647.2366983.15590065167920474865.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Rename xbc_destroy_all() to xbc_exit()Masami Hiramatsu1-4/+4
Avoid using this noisy name and use more calm one. This is just a name change. No functional change. Link: https://lkml.kernel.org/r/163187295918.2366983.5231840238429996027.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Add xbc_get_info() for the node informationMasami Hiramatsu1-0/+21
Add xbc_get_info() API which allows user to get the number of used xbc_nodes and the size of bootconfig data. This is also useful for checking the bootconfig is initialized or not. Link: https://lkml.kernel.org/r/163177340877.682366.4360676589783197627.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-10bootconfig: Allocate xbc_data inside xbc_init()Masami Hiramatsu1-12/+21
Allocate 'xbc_data' in the xbc_init() so that it does not need to care about the ownership of the copied data. Link: https://lkml.kernel.org/r/163177339986.682366.898762699429769117.stgit@devnote2 Suggested-by: Steven Rostedt <[email protected]> Signed-off-by: Masami Hiramatsu <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-10-07bpf, tests: Add more LD_IMM64 testsJohan Almbladh1-3/+117
This patch adds new tests for the two-instruction LD_IMM64. The new tests verify the operation with immediate values of different byte patterns. Mainly intended to cover JITs that want to be clever when loading 64-bit constants. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-07kasan: Extend KASAN mode kernel parameterVincenzo Frascino1-1/+1
Architectures supported by KASAN_HW_TAGS can provide an asymmetric mode of execution. On an MTE enabled arm64 hw for example this can be identified with the asymmetric tagging mode of execution. In particular, when such a mode is present, the CPU triggers a fault on a tag mismatch during a load operation and asynchronously updates a register when a tag mismatch is detected during a store operation. Extend the KASAN HW execution mode kernel command line parameter to support asymmetric mode. Cc: Dmitry Vyukov <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Alexander Potapenko <[email protected]> Cc: Andrey Konovalov <[email protected]> Signed-off-by: Vincenzo Frascino <[email protected]> Reviewed-by: Catalin Marinas <[email protected]> Reviewed-by: Andrey Konovalov <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Will Deacon <[email protected]>
2021-10-06bitfield: build kunit tests without structleak pluginArnd Bergmann1-1/+1
The structleak plugin causes the stack frame size to grow immensely: lib/bitfield_kunit.c: In function 'test_bitfields_constants': lib/bitfield_kunit.c:93:1: error: the frame size of 7440 bytes is larger than 2048 bytes [-Werror=frame-larger-than=] Turn it off in this file. Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Brendan Higgins <[email protected]> Reviewed-by: Kees Cook <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2021-10-07Merge branch 'objtool/urgent'Peter Zijlstra7-11/+91
Fixup conflicts. # Conflicts: # tools/objtool/check.c
2021-10-04Merge 5.15-rc4 into driver-core-nextGreg Kroah-Hartman7-11/+91
We need the driver core fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2021-10-01Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski1-204/+5827
Daniel Borkmann says: ==================== bpf-next 2021-10-02 We've added 85 non-merge commits during the last 15 day(s) which contain a total of 132 files changed, 13779 insertions(+), 6724 deletions(-). The main changes are: 1) Massive update on test_bpf.ko coverage for JITs as preparatory work for an upcoming MIPS eBPF JIT, from Johan Almbladh. 2) Add a batched interface for RX buffer allocation in AF_XDP buffer pool, with driver support for i40e and ice from Magnus Karlsson. 3) Add legacy uprobe support to libbpf to complement recently merged legacy kprobe support, from Andrii Nakryiko. 4) Add bpf_trace_vprintk() as variadic printk helper, from Dave Marchevsky. 5) Support saving the register state in verifier when spilling <8byte bounded scalar to the stack, from Martin Lau. 6) Add libbpf opt-in for stricter BPF program section name handling as part of libbpf 1.0 effort, from Andrii Nakryiko. 7) Add a document to help clarifying BPF licensing, from Alexei Starovoitov. 8) Fix skel_internal.h to propagate errno if the loader indicates an internal error, from Kumar Kartikeya Dwivedi. 9) Fix build warnings with -Wcast-function-type so that the option can later be enabled by default for the kernel, from Kees Cook. 10) Fix libbpf to ignore STT_SECTION symbols in legacy map definitions as it otherwise errors out when encountering them, from Toke Høiland-Jørgensen. 11) Teach libbpf to recognize specialized maps (such as for perf RB) and internally remove BTF type IDs when creating them, from Hengqi Chen. 12) Various fixes and improvements to BPF selftests. ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2021-10-01audit: add support for the openat2 syscallRichard Guy Briggs2-0/+8
The openat2(2) syscall was added in kernel v5.6 with commit fddb5d430ad9 ("open: introduce openat2(2) syscall"). Add the openat2(2) syscall to the audit syscall classifier. Link: https://github.com/linux-audit/audit-kernel/issues/67 Link: https://lore.kernel.org/r/f5f1a4d8699613f8c02ce762807228c841c2e26f.1621363275.git.rgb@redhat.com Signed-off-by: Richard Guy Briggs <[email protected]> Acked-by: Christian Brauner <[email protected]> [PM: merge fuzz due to previous header rename, commit line wraps] Signed-off-by: Paul Moore <[email protected]>
2021-10-01audit: replace magic audit syscall class numbers with macrosRichard Guy Briggs2-10/+11
Replace audit syscall class magic numbers with macros. This required putting the macros into new header file include/linux/audit_arch.h since the syscall macros were included for both 64 bit and 32 bit in any compat code, causing redefinition warnings. Link: https://lore.kernel.org/r/2300b1083a32aade7ae7efb95826e8f3f260b1df.1621363275.git.rgb@redhat.com Signed-off-by: Richard Guy Briggs <[email protected]> Acked-by: Christian Brauner <[email protected]> [PM: renamed header to audit_arch.h after consulting with Richard] Signed-off-by: Paul Moore <[email protected]>
2021-10-01kunit: fix reference count leak in kfree_at_endXiyu Yang1-2/+2
The reference counting issue happens in the normal path of kfree_at_end(). When kunit_alloc_and_get_resource() is invoked, the function forgets to handle the returned resource object, whose refcount increased inside, causing a refcount leak. Fix this issue by calling kunit_alloc_resource() instead of kunit_alloc_and_get_resource(). Fixed the following when applying: Shuah Khan <[email protected]> CHECK: Alignment should match open parenthesis + kunit_alloc_resource(test, NULL, kfree_res_free, GFP_KERNEL, (void *)to_free); Signed-off-by: Xiyu Yang <[email protected]> Signed-off-by: Xin Tan <[email protected]> Reviewed-by: Daniel Latypov <[email protected]> Reviewed-by: Brendan Higgins <[email protected]> Signed-off-by: Shuah Khan <[email protected]>
2021-10-01bpf/tests: Add test of LDX_MEM with operand aliasingJohan Almbladh1-0/+58
This patch adds a set of tests of BPF_LDX_MEM where both operand registers are the same register. Mainly testing 32-bit JITs that may load a 64-bit value in two 32-bit loads, and must not overwrite the address register. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add test of ALU shifts with operand register aliasingJohan Almbladh1-13/+149
This patch adds a tests of ALU32 and ALU64 LSH/RSH/ARSH operations for the case when the two operands are the same register. Mainly intended to test JITs that implement ALU64 shifts with 32-bit CPU instructions. Also renamed related helper functions for consistency with the new tests. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add exhaustive tests of BPF_ATOMIC register combinationsJohan Almbladh1-0/+422
This patch adds tests of all register combinations for BPF_ATOMIC operations on both BPF_W and BPF_DW sizes. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add exhaustive tests of ALU register combinationsJohan Almbladh1-71/+763
This patch replaces the current register combination test with new exhaustive tests. Before, only a subset of register combinations was tested for ALU64 DIV. Now, all combinatons of operand registers are tested, including the case when they are the same, and for all ALU32 and ALU64 operations. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Minor restructuring of ALU testsJohan Almbladh1-72/+65
This patch moves the ALU LSH/RSH/ARSH reference computations into the common reference value function. Also fix typo in constants so they now have the intended values. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add more tests for ALU and ATOMIC register clobberingJohan Almbladh1-70/+197
This patch expands the register-clobbering-during-function-call tests to cover more all ALU32/64 MUL, DIV and MOD operations and all ATOMIC operations. In short, if a JIT implements a complex operation with a call to an external function, it must make sure to save and restore all its caller-saved registers that may be clobbered by the call. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add tests to check source register zero-extensionJohan Almbladh1-0/+143
This patch adds tests to check that the source register is preserved when zero-extending a 32-bit value. In particular, it checks that the source operand is not zero-extended in-place. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add exhaustive tests of BPF_ATOMIC magnitudesJohan Almbladh1-1/+503
This patch adds a series of test to verify the operation of BPF_ATOMIC with BPF_DW and BPF_W sizes, for all power-of-two magnitudes of the register value operand. Also fixes a confusing typo in the comment for a related test. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add zero-extension checks in BPF_ATOMIC testsJohan Almbladh1-5/+17
This patch updates the existing tests of BPF_ATOMIC operations to verify that a 32-bit register operand is properly zero-extended. In particular, it checks the operation on archs that require 32-bit operands to be properly zero-/sign-extended or the result is undefined, e.g. MIPS64. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-10-01bpf/tests: Add tests of BPF_LDX and BPF_STX with small sizesJohan Almbladh1-0/+254
This patch adds a series of tests to verify the behavior of BPF_LDX and BPF_STX with BPF_B//W sizes in isolation. In particular, it checks that BPF_LDX zero-extendeds the result, and that BPF_STX does not overwrite adjacent bytes in memory. BPF_ST and operations on BPF_DW size are deemed to be sufficiently tested by existing tests. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-30kprobes: treewide: Replace arch_deref_entry_point() with ↵Masami Hiramatsu1-1/+2
dereference_symbol_descriptor() ~15 years ago kprobes grew the 'arch_deref_entry_point()' __weak function: 3d7e33825d87: ("jprobes: make jprobes a little safer for users") But this is just open-coded dereference_symbol_descriptor() in essence, and its obscure nature was causing bugs. Just use the real thing and remove arch_deref_entry_point(). Link: https://lkml.kernel.org/r/163163043630.489837.7924988885652708696.stgit@devnote2 Signed-off-by: Masami Hiramatsu <[email protected]> Tested-by: Andrii Nakryiko <[email protected]> Signed-off-by: Steven Rostedt (VMware) <[email protected]>
2021-09-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-8/+9
drivers/net/phy/bcm7xxx.c d88fd1b546ff ("net: phy: bcm7xxx: Fixed indirect MMD operations") f68d08c437f9 ("net: phy: bcm7xxx: Add EPHY entry for 72165") net/sched/sch_api.c b193e15ac69d ("net: prevent user from passing illegal stab size") 69508d43334e ("net_sched: Use struct_size() and flex_array_size() helpers") Both cases trivial - adjacent code additions. Signed-off-by: Jakub Kicinski <[email protected]>
2021-09-28bpf: Replace "want address" users of BPF_CAST_CALL with BPF_CALL_IMMKees Cook1-1/+1
In order to keep ahead of cases in the kernel where Control Flow Integrity (CFI) may trip over function call casts, enabling -Wcast-function-type is helpful. To that end, BPF_CAST_CALL causes various warnings and is one of the last places in the kernel triggering this warning. Most places using BPF_CAST_CALL actually just want a void * to perform math on. It's not actually performing a call, so just use a different helper to get the void *, by way of the new BPF_CALL_IMM() helper, which can clean up a common copy/paste idiom as well. This change results in no object code difference. Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Reviewed-by: Gustavo A. R. Silva <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Link: https://github.com/KSPP/linux/issues/20 Link: https://lore.kernel.org/lkml/CAEf4Bzb46=-J5Fxc3mMZ8JQPtK1uoE0q6+g6WPz53Cvx=CBEhw@mail.gmail.com Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add tail call limit test with external function callJohan Almbladh1-3/+83
This patch adds a tail call limit test where the program also emits a BPF_CALL to an external function prior to the tail call. Mainly testing that JITed programs preserve its internal register state, for example tail call count, across such external calls. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Fix error in tail call limit testsJohan Almbladh1-10/+27
This patch fixes an error in the tail call limit test that caused the test to fail on for x86-64 JIT. Previously, the register R0 was used to report the total number of tail calls made. However, after a tail call fall-through, the value of the R0 register is undefined. Now, all tail call error path tests instead use context state to store the count. Fixes: 874be05f525e ("bpf, tests: Add tail call test suite") Reported-by: Paul Chaignon <[email protected]> Reported-by: Tiezhu Yang <[email protected]> Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Tested-by: Tiezhu Yang <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add more BPF_END byte order conversion testsJohan Almbladh1-0/+122
This patch adds tests of the high 32 bits of 64-bit BPF_END conversions. It also adds a mirrored set of tests where the source bytes are reversed. The MSB of each byte is now set on the high word instead, possibly affecting sign-extension during conversion in a different way. Mainly for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Expand branch conversion JIT testJohan Almbladh1-34/+91
This patch expands the branch conversion test introduced by 66e5eb84 ("bpf, tests: Add branch conversion JIT test"). The test now includes a JMP with maximum eBPF offset. This triggers branch conversion for the 64-bit MIPS JIT. Additional variants are also added for cases when the branch is taken or not taken. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add JMP tests with degenerate conditionalJohan Almbladh1-0/+229
This patch adds a set of tests for JMP and JMP32 operations where the branch decision is know at JIT time. Mainly testing JIT behaviour. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add JMP tests with small offsetsJohan Almbladh1-0/+71
This patch adds a set of tests for JMP to verify that the JITed jump offset is calculated correctly. We pretend that the verifier has inserted any zero extensions to make the jump-over operations JIT to one instruction each, in order to control the exact JITed jump offset. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add test case flag for verifier zero-extensionJohan Almbladh1-0/+3
This patch adds a new flag to indicate that the verified did insert zero-extensions, even though the verifier is not being run for any of the tests. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive test of LD_IMM64 immediate magnitudesJohan Almbladh1-0/+63
This patch adds a test for the 64-bit immediate load, a two-instruction operation, to verify correctness for all possible magnitudes of the immediate operand. Mainly intended for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add staggered JMP and JMP32 testsJohan Almbladh1-0/+829
This patch adds a new type of jump test where the program jumps forwards and backwards with increasing offset. It mainly tests JITs where a relative jump may generate different JITed code depending on the offset size, read MIPS. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive tests of JMP operand magnitudesJohan Almbladh1-0/+779
This patch adds a set of tests for conditional JMP and JMP32 operations to verify correctness for all possible magnitudes of the immediate and register operands. Mainly intended for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive tests of ALU operand magnitudesJohan Almbladh1-0/+772
This patch adds a set of tests for ALU64 and ALU32 arithmetic and bitwise logical operations to verify correctness for all possible magnitudes of the register and immediate operands. Mainly intended for JIT testing. The patch introduces a pattern generator that can be used to drive extensive tests of different kinds of operations. It is parameterized to allow tuning of the operand combinations to test. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Add exhaustive tests of ALU shift valuesJohan Almbladh1-0/+260
This patch adds a set of tests for ALU64 and ALU32 shift operations to verify correctness for all possible values of the shift value. Mainly intended for JIT testing. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Reduce memory footprint of test suiteJohan Almbladh1-14/+12
The test suite used to call any fill_helper callbacks to generate eBPF program data for all test cases at once. This caused ballooning memory requirements as more extensive test cases were added. Now the each fill_helper is called before the test is run and the allocated memory released afterwards, before the next test case is processed. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-28bpf/tests: Allow different number of runs per test caseJohan Almbladh1-0/+4
This patch allows a test cast to specify the number of runs to use. For compatibility with existing test case definitions, the default value 0 is interpreted as MAX_TESTRUNS. A reduced number of runs is useful for complex test programs where 1000 runs may take a very long time. Instead of reducing what is tested, one can instead reduce the number of times the test is run. Signed-off-by: Johan Almbladh <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2021-09-25fortify: Move remaining fortify helpers into fortify-string.hKees Cook1-0/+2
When commit a28a6e860c6c ("string.h: move fortified functions definitions in a dedicated header.") moved the fortify-specific code, some helpers were left behind. Move the remaining fortify-specific helpers into fortify-string.h so they're together where they're used. This requires that any FORTIFY helper function prototypes be conditionally built to avoid "no prototype" warnings. Additionally removes unused helpers. Cc: Andrew Morton <[email protected]> Cc: Daniel Axtens <[email protected]> Cc: Vincenzo Frascino <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Dan Williams <[email protected]> Acked-by: Francis Laniel <[email protected]> Reviewed-by: Nick Desaulniers <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2021-09-25lib/string: Move helper functions out of string.cKees Cook2-204/+199
The core functions of string.c are those that may be implemented by per-architecture functions, or overloaded by FORTIFY_SOURCE. As a result, it needs to be built with __NO_FORTIFY. Without this, macros will collide with function declarations. This was accidentally working due to -ffreestanding (on some architectures). Make this deterministic by explicitly setting __NO_FORTIFY and move all the helper functions into string_helpers.c so that they gain the fortification coverage they had been missing. Cc: Andrew Morton <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Andy Lavr <[email protected]> Cc: Nathan Chancellor <[email protected]> Cc: Alexey Dobriyan <[email protected]> Cc: Stephen Rothwell <[email protected]> Cc: Bartosz Golaszewski <[email protected]> Acked-by: Andy Shevchenko <[email protected]> Signed-off-by: Kees Cook <[email protected]>
2021-09-24lib/zlib_inflate/inffast: check config in C to avoid unused function warningPaul Menzel1-7/+6
Building Linux for ppc64le with Ubuntu clang version 12.0.0-3ubuntu1~21.04.1 shows the warning below. arch/powerpc/boot/inffast.c:20:1: warning: unused function 'get_unaligned16' [-Wunused-function] get_unaligned16(const unsigned short *p) ^ 1 warning generated. Fix it by moving the check from the preprocessor to C, so the compiler sees the use. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Paul Menzel <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Tested-by: Nathan Chancellor <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Christophe Leroy <[email protected]> Cc: Zhen Lei <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-09-24xtensa: increase size of gcc stack frame checkGuenter Roeck1-1/+1
xtensa frame size is larger than the frame size for almost all other architectures. This results in more than 50 "the frame size of <n> is larger than 1024 bytes" errors when trying to build xtensa:allmodconfig. Increase frame size for xtensa to 1536 bytes to avoid compile errors due to frame size limits. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Guenter Roeck <[email protected]> Reviewed-by: Max Filippov <[email protected]> Cc: Chris Zankel <[email protected]> Cc: David Laight <[email protected]> Cc: Masahiro Yamada <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-09-24kasan: fix Kconfig check of CC_HAS_WORKING_NOSANITIZE_ADDRESSMarco Elver1-0/+2
In the main KASAN config option CC_HAS_WORKING_NOSANITIZE_ADDRESS is checked for instrumentation-based modes. However, if HAVE_ARCH_KASAN_HW_TAGS is true all modes may still be selected. To fix, also make the software modes depend on CC_HAS_WORKING_NOSANITIZE_ADDRESS. Link: https://lkml.kernel.org/r/[email protected] Fixes: 6a63a63ff1ac ("kasan: introduce CONFIG_KASAN_HW_TAGS") Signed-off-by: Marco Elver <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Alexander Potapenko <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Aleksandr Nogikh <[email protected]> Cc: Taras Madan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2021-09-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski3-1/+80
net/mptcp/protocol.c 977d293e23b4 ("mptcp: ensure tx skbs always have the MPTCP ext") efe686ffce01 ("mptcp: ensure tx skbs always have the MPTCP ext") same patch merged in both trees, keep net-next. Signed-off-by: Jakub Kicinski <[email protected]>
2021-09-23Merge tag 'net-5.15-rc3' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Current release - regressions: - dsa: bcm_sf2: fix array overrun in bcm_sf2_num_active_ports() Previous releases - regressions: - introduce a shutdown method to mdio device drivers, and make DSA switch drivers compatible with masters disappearing on shutdown; preventing infinite reference wait - fix issues in mdiobus users related to ->shutdown vs ->remove - virtio-net: fix pages leaking when building skb in big mode - xen-netback: correct success/error reporting for the SKB-with-fraglist - dsa: tear down devlink port regions when tearing down the devlink port on error - nexthop: fix division by zero while replacing a resilient group - hns3: check queue, vf, vlan ids range before using Previous releases - always broken: - napi: fix race against netpoll causing NAPI getting stuck - mlx4_en: ensure link operstate is updated even if link comes up before netdev registration - bnxt_en: fix TX timeout when TX ring size is set to the smallest - enetc: fix illegal access when reading affinity_hint; prevent oops on sysfs access - mtk_eth_soc: avoid creating duplicate offload entries Misc: - core: correct the sock::sk_lock.owned lockdep annotations" * tag 'net-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits) atlantic: Fix issue in the pm resume flow. net/mlx4_en: Don't allow aRFS for encapsulated packets net: mscc: ocelot: fix forwarding from BLOCKING ports remaining enabled net: ethernet: mtk_eth_soc: avoid creating duplicate offload entries nfc: st-nci: Add SPI ID matching DT compatible MAINTAINERS: remove Guvenc Gulce as net/smc maintainer nexthop: Fix memory leaks in nexthop notification chain listeners mptcp: ensure tx skbs always have the MPTCP ext qed: rdma - don't wait for resources under hw error recovery flow s390/qeth: fix deadlock during failing recovery s390/qeth: Fix deadlock in remove_discipline s390/qeth: fix NULL deref in qeth_clear_working_pool_list() net: dsa: realtek: register the MDIO bus under devres net: dsa: don't allocate the slave_mii_bus using devres Doc: networking: Fox a typo in ice.rst net: dsa: fix dsa_tree_setup error path net/smc: fix 'workqueue leaked lock' in smc_conn_abort_work net/smc: add missing error check in smc_clc_prfx_set() net: hns3: fix a return value error in hclge_get_reset_status() net: hns3: check vlan id before using it ...
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