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🐞 Open [1026] 🐞 Fixed [3926] 🐞 Invalid [8524] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in mm_update_next_owner / wb_workfn (4) | 1 | 673d | 673d | 0/23 | auto-closed as invalid on 2020/11/16 07:19 | |||
upstream | KCSAN: data-race in mm_update_next_owner / wb_workfn (7) | 1 | 521d | 521d | 0/23 | auto-closed as invalid on 2021/04/17 00:26 | |||
upstream | KCSAN: data-race in mm_update_next_owner / wb_workfn (3) | 2 | 758d | 779d | 0/23 | auto-closed as invalid on 2020/08/22 21:27 | |||
upstream | KCSAN: data-race in mm_update_next_owner / wb_workfn (5) | 2 | 613d | 617d | 0/23 | auto-closed as invalid on 2021/01/15 21:05 | |||
upstream | KCSAN: data-race in mm_update_next_owner / wb_workfn (2) | 3 | 869d | 959d | 0/23 | auto-closed as invalid on 2020/06/08 08:14 | |||
upstream | KCSAN: data-race in mm_update_next_owner / wb_workfn (6) | 2 | 565d | 577d | 0/23 | auto-closed as invalid on 2021/03/04 08:19 | |||
upstream | KCSAN: data-race in mm_update_next_owner / wb_workfn (8) | 4 | 452d | 462d | 0/23 | auto-closed as invalid on 2021/06/25 06:02 |
================================================================== BUG: KCSAN: data-race in mm_update_next_owner / wb_workfn write to 0xffff88812af30024 of 4 bytes by task 2644 on cpu 0: wb_workfn+0xbf/0x970 fs/fs-writeback.c:2064 process_one_work+0x3d4/0x890 kernel/workqueue.c:2269 worker_thread+0xa0/0x800 kernel/workqueue.c:2415 kthread+0x1d4/0x200 drivers/block/aoe/aoecmd.c:1253 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 read to 0xffff88812af30024 of 4 bytes by task 15371 on cpu 1: mm_update_next_owner+0x29f/0x460 kernel/exit.c:389 exit_mm kernel/exit.c:484 [inline] do_exit+0x4c1/0x18f0 kernel/exit.c:804 do_group_exit+0xb4/0x1c0 kernel/exit.c:921 __do_sys_exit_group kernel/exit.c:932 [inline] __se_sys_exit_group kernel/exit.c:930 [inline] __x64_sys_exit_group+0x2e/0x30 kernel/exit.c:930 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: 15371 Comm: syz-executor.2 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: 15371 Comm: syz-executor.2 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_read4+0x145/0x1f0 kernel/kcsan/core.c:529 mm_update_next_owner+0x29f/0x460 kernel/exit.c:389 exit_mm kernel/exit.c:484 [inline] do_exit+0x4c1/0x18f0 kernel/exit.c:804 do_group_exit+0xb4/0x1c0 kernel/exit.c:921 __do_sys_exit_group kernel/exit.c:932 [inline] __se_sys_exit_group kernel/exit.c:930 [inline] __x64_sys_exit_group+0x2e/0x30 kernel/exit.c:930 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:00007ffcb5d92d48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 000000000045a219 RDX: 0000000000413db1 RSI: fffffffffffffff7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffffff R09: 00007ffcb5d92da0 R10: 00000000f2b90448 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcb5d92da0 R14: 0000000000000000 R15: 00007ffcb5d92db0 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci2-upstream-kcsan-gce | 2019/11/08 02:30 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | f39aff9e | .config | log | report | ||||
ci2-upstream-kcsan-gce | 2019/10/28 16:40 | https://github.com/google/ktsan.git kcsan | 05f2236801fe | 439d7b14 | .config | log | report |