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===================================================== BUG: KMSAN: uninit-value in __preempt_count_add arch/x86/include/asm/preempt.h:80 [inline] BUG: KMSAN: uninit-value in preempt_count_add+0x1b5/0x320 kernel/sched/core.c:5532 __preempt_count_add arch/x86/include/asm/preempt.h:80 [inline] preempt_count_add+0x1b5/0x320 kernel/sched/core.c:5532 sysvec_reschedule_ipi+0x1c/0x110 arch/x86/kernel/smp.c:225 asm_sysvec_reschedule_ipi+0x12/0x20 kmsan_internal_is_module_addr+0x1/0x20 mm/kmsan/core.c:461 kmsan_get_shadow_origin_ptr+0x9b/0xf0 mm/kmsan/shadow.c:103 get_shadow_origin_ptr mm/kmsan/instrumentation.c:35 [inline] __msan_metadata_ptr_for_load_8+0x20/0x30 mm/kmsan/instrumentation.c:77 update_stack_state+0x883/0xa60 arch/x86/kernel/unwind_frame.c:247 unwind_next_frame+0x6d0/0xe50 arch/x86/kernel/unwind_frame.c:304 arch_stack_walk+0x320/0x3c0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x117/0x1a0 kernel/stacktrace.c:122 kmsan_save_stack_with_flags mm/kmsan/core.c:80 [inline] kmsan_internal_chain_origin+0xac/0x120 mm/kmsan/core.c:252 kmsan_internal_memmove_metadata+0x201/0x350 mm/kmsan/core.c:163 __msan_memcpy+0x65/0x90 mm/kmsan/instrumentation.c:145 sock_write_iter+0x109/0x690 net/socket.c:1048 call_write_iter include/linux/fs.h:2050 [inline] new_sync_write fs/read_write.c:504 [inline] vfs_write+0x119f/0x1e80 fs/read_write.c:591 ksys_write+0x28b/0x510 fs/read_write.c:644 __do_sys_write fs/read_write.c:656 [inline] __se_sys_write fs/read_write.c:653 [inline] __x64_sys_write+0xdb/0x120 fs/read_write.c:653 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae Local variable filename created at: process_measurement+0x1c5/0x38a0 security/integrity/ima/ima_main.c:209 ima_file_check+0x123/0x170 security/integrity/ima/ima_main.c:517 CPU: 0 PID: 2848 Comm: udevd Not tainted 5.18.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/05/18 01:00 | https://github.com/google/kmsan.git master | a87d7972661b | 744a39e2 | .config | console log | report | ci-upstream-kmsan-gce | kmsan boot error: KMSAN: uninit-value in preempt_count_add | ||||
2022/05/17 10:55 | https://github.com/google/kmsan.git master | bb5f91ee4783 | 744a39e2 | .config | console log | report | ci-upstream-kmsan-gce | kmsan boot error: KMSAN: uninit-value in preempt_count_add | ||||
2022/05/17 11:13 | https://github.com/google/kmsan.git master | bb5f91ee4783 | 744a39e2 | .config | console log | report | ci-upstream-kmsan-gce-386 | kmsan boot error: KMSAN: uninit-value in preempt_count_add |