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================================================================== BUG: KCSAN: data-race in ksys_write / ksys_write write to 0xffff88812ae12168 of 8 bytes by task 26672 on cpu 0: ksys_write+0xf0/0x1a0 fs/read_write.c:614 __do_sys_write fs/read_write.c:624 [inline] __se_sys_write fs/read_write.c:621 [inline] __x64_sys_write+0x49/0x60 fs/read_write.c:621 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88812ae12168 of 8 bytes by task 26673 on cpu 1: ksys_write+0xa4/0x1a0 fs/read_write.c:609 __do_sys_write fs/read_write.c:624 [inline] __se_sys_write fs/read_write.c:621 [inline] __x64_sys_write+0x49/0x60 fs/read_write.c:621 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 26673 Comm: syz-executor.1 Not tainted 5.7.0-rc1-syzkaller #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: 26673 Comm: syz-executor.1 Not tainted 5.7.0-rc1-syzkaller #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+0x11d/0x187 lib/dump_stack.c:118 panic+0x210/0x640 kernel/panic.c:221 kcsan_report.cold+0xc/0x1a kernel/kcsan/report.c:626 kcsan_setup_watchpoint+0x3fb/0x440 kernel/kcsan/core.c:519 ksys_write+0xa4/0x1a0 fs/read_write.c:609 __do_sys_write fs/read_write.c:624 [inline] __se_sys_write fs/read_write.c:621 [inline] __x64_sys_write+0x49/0x60 fs/read_write.c:621 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45ca29 Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9eb4141c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000050b000 RCX: 000000000045ca29 RDX: 000000000000001c RSI: 0000000020000600 RDI: 0000000000000003 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000c87 R14: 00000000004ced6e R15: 00007f9eb41426d4 Kernel Offset: disabled Rebooting in 86400 seconds..
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/05/18 09:41 | https://github.com/google/ktsan.git kcsan | 7c3cd68e5d38 | 37bccd4e | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/04/10 06:17 | https://github.com/google/ktsan.git kcsan | 40959e34d670 | a8c6a3f8 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/03/08 09:46 | https://github.com/google/ktsan.git kcsan | 941e0d917bbf | 2e9971bb | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/02/06 06:31 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 662cf49a | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/01/24 20:47 | https://github.com/google/ktsan.git kcsan | 245a43005292 | 2e95ab33 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/12/07 19:06 | https://github.com/google/ktsan.git kcsan | ef798c30ba4e | 85f26751 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/12 21:05 | https://github.com/google/ktsan.git kcsan | 7f2955e0d056 | 048f2d49 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2019/11/09 21:44 | https://github.com/google/ktsan.git kcsan | 94c006602e13 | 1e35461e | .config | console log | report | ci2-upstream-kcsan-gce |