Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in futex_wait_queue_me / task_set_jobctl_pending (2) kernel | 49 | 1765d | 1937d | 0/28 | closed as invalid on 2020/06/18 14:24 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in futex_wait_queue_me / task_set_jobctl_pending (2) kernel | 49 | 1765d | 1937d | 0/28 | closed as invalid on 2020/06/18 14:24 |
================================================================== BUG: KCSAN: data-race in futex_wait_queue_me / task_set_jobctl_pending read to 0xffff88810cea6064 of 4 bytes by task 26847 on cpu 0: task_set_jobctl_pending+0x9c/0x180 kernel/signal.c:291 do_signal_stop+0x40e/0x500 kernel/signal.c:2349 get_signal+0x61b/0x1320 kernel/signal.c:2694 do_signal+0x3b/0xbf0 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x250/0x2c0 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x353/0x370 arch/x86/entry/common.c:300 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff88810cea6064 of 4 bytes by task 26842 on cpu 1: freezer_count include/linux/freezer.h:121 [inline] freezable_schedule include/linux/freezer.h:173 [inline] futex_wait_queue_me+0x1a2/0x290 kernel/futex.c:2627 futex_wait+0x19b/0x3f0 kernel/futex.c:2733 do_futex+0xe9/0x18d0 kernel/futex.c:3644 __do_sys_futex kernel/futex.c:3705 [inline] __se_sys_futex kernel/futex.c:3673 [inline] __x64_sys_futex+0x2cd/0x3f0 kernel/futex.c:3673 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 26842 Comm: syz-executor.3 Not tainted 5.4.0-rc6+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 26842 Comm: syz-executor.3 Not tainted 5.4.0-rc6+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xf5/0x159 lib/dump_stack.c:113 panic+0x210/0x640 kernel/panic.c:221 kcsan_report.cold+0xc/0xe kernel/kcsan/report.c:302 kcsan_setup_watchpoint+0x3fe/0x410 kernel/kcsan/core.c:357 check_access kernel/kcsan/core.c:409 [inline] __tsan_unaligned_write4+0x143/0x1f0 kernel/kcsan/core.c:529 freezer_count include/linux/freezer.h:121 [inline] freezable_schedule include/linux/freezer.h:173 [inline] futex_wait_queue_me+0x1a2/0x290 kernel/futex.c:2627 futex_wait+0x19b/0x3f0 kernel/futex.c:2733 do_futex+0xe9/0x18d0 kernel/futex.c:3644 __do_sys_futex kernel/futex.c:3705 [inline] __se_sys_futex kernel/futex.c:3673 [inline] __x64_sys_futex+0x2cd/0x3f0 kernel/futex.c:3673 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45a219 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:00007ffe9e564ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00000000000003e8 RCX: 000000000045a219 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075c07c RBP: 000000000000002d R08: ffffffffffffffff R09: ffffffffffffffff R10: 00007ffe9e564dc0 R11: 0000000000000246 R12: 000000000075c070 R13: 00000000000e9d6a R14: 00000000000e9d97 R15: 000000000075c07c Kernel Offset: disabled Rebooting in 86400 seconds..
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/11/07 06:21 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | d797d201 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/04 20:14 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | 18e12644 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/04 12:30 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 18e12644 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/26 14:11 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 25bb509e | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/10/25 12:07 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 04ca72cd | .config | console log | report | ci2-upstream-kcsan-gce |