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================================================================== BUG: KCSAN: data-race in hrtimer_reprogram / print_cpu write to 0xffff888237d1ffa0 of 8 bytes by task 9645 on cpu 1: __hrtimer_reprogram kernel/time/hrtimer.c:657 [inline] hrtimer_reprogram+0x1a2/0x220 kernel/time/hrtimer.c:864 hrtimer_start_range_ns+0x4ee/0x560 kernel/time/hrtimer.c:1301 hrtimer_start_expires include/linux/hrtimer.h:289 [inline] hrtimer_restart include/linux/hrtimer.h:297 [inline] common_hrtimer_rearm+0xa6/0xc0 kernel/time/posix-timers.c:249 posixtimer_rearm+0xc7/0x1a0 kernel/time/posix-timers.c:267 dequeue_signal+0x282/0x430 kernel/signal.c:696 get_signal+0x37d/0x1080 kernel/signal.c:2788 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x59/0x130 kernel/entry/common.c:218 do_syscall_64+0xd6/0x1c0 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888237d1ffa0 of 8 bytes by task 9668 on cpu 0: print_cpu+0x2fb/0x670 kernel/time/timer_list.c:133 timer_list_show+0x115/0x180 kernel/time/timer_list.c:295 seq_read_iter+0x2d7/0x940 fs/seq_file.c:230 proc_reg_read_iter+0x11e/0x190 fs/proc/inode.c:299 copy_splice_read+0x3a4/0x5d0 fs/splice.c:365 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x26c/0x670 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0xd7/0x150 fs/splice.c:1233 do_sendfile+0x3ab/0x960 fs/read_write.c:1295 __do_sys_sendfile64 fs/read_write.c:1362 [inline] __se_sys_sendfile64 fs/read_write.c:1348 [inline] __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1348 x64_sys_call+0x2c9f/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:41 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000006441c29200 -> 0x00000064416e49b8 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9668 Comm: syz.1.7010 Tainted: G W 6.10.0-rc5-syzkaller-00280-g27b31deb900d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/06/30 04:54 | upstream | 27b31deb900d | 757f06b1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in hrtimer_reprogram / print_cpu | ||
2024/06/17 21:23 | upstream | 6226e74900d7 | 1f11cfd7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in hrtimer_reprogram / print_cpu | ||
2024/06/17 14:15 | upstream | 6ba59ff42279 | 1f11cfd7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in hrtimer_reprogram / print_cpu | ||
2024/06/14 10:50 | upstream | d20f6b3d747c | 8d849073 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in hrtimer_reprogram / print_cpu | ||
2024/06/13 16:15 | upstream | 2ccbdf43d5e7 | a9616ff5 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in hrtimer_reprogram / print_cpu | ||
2024/06/11 08:59 | upstream | 83a7eefedc9b | b7d9eb04 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in hrtimer_reprogram / print_cpu |