KCSAN: data-race in ksys_write / ksys

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in ksys_write / ksys_write (6) fs	6	1	1480d	1480d	0/29	auto-closed as invalid on 2022/07/09 10:17
upstream	KCSAN: data-race in ksys_write / ksys_write (2) fs	6	1	2160d	2160d	0/29	auto-closed as invalid on 2020/08/28 08:07
upstream	KCSAN: data-race in ksys_write / ksys_write (4) fs	6	2	1975d	1997d	0/29	auto-closed as invalid on 2021/03/01 11:18
upstream	KCSAN: data-race in ksys_write / ksys_write (5) fs	6	2	1615d	1632d	0/29	auto-closed as invalid on 2022/02/24 13:47
upstream	KCSAN: data-race in ksys_write / ksys_write (8) fs	6	1	1322d	1322d	0/29	auto-obsoleted due to no activity on 2022/12/14 10:38
upstream	KCSAN: data-race in ksys_write / ksys_write (7) fs	6	5	1359d	1430d	0/29	auto-obsoleted due to no activity on 2022/11/07 06:37
upstream	KCSAN: data-race in ksys_write / ksys_write (13) fs	6	1	575d	575d	0/29	auto-obsoleted due to no activity on 2025/01/19 23:33
upstream	KCSAN: data-race in ksys_write / ksys_write (11) fs	6	8	938d	926d	0/29	auto-obsoleted due to no activity on 2024/01/01 18:01
upstream	KCSAN: data-race in ksys_write / ksys_write (10) fs	6	1	1073d	1073d	0/29	auto-obsoleted due to no activity on 2023/08/20 13:19
upstream	KCSAN: data-race in ksys_write / ksys_write fs	6	8	2227d	2415d	0/29	auto-closed as invalid on 2020/06/22 09:42
upstream	KCSAN: data-race in ksys_write / ksys_write (9) fs	6	2	1163d	1227d	0/29	auto-obsoleted due to no activity on 2023/05/22 00:31
upstream	KCSAN: data-race in ksys_write / ksys_write (12) fs	6	3	856d	882d	0/29	auto-obsoleted due to no activity on 2024/03/24 05:08

================================================================== BUG: KCSAN: data-race in ksys_write / ksys_write write to 0xffff88810d06f068 of 8 bytes by task 17350 on cpu 1: ksys_write+0x101/0x180 fs/read_write.c:660 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:667 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88810d06f068 of 8 bytes by task 17345 on cpu 0: ksys_write+0x7f/0x180 fs/read_write.c:655 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:667 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 17345 Comm: syz-executor.2 Not tainted 5.10.0-rc3-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: 0 PID: 17345 Comm: syz-executor.2 Not tainted 5.10.0-rc3-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+0x116/0x15d lib/dump_stack.c:118 panic+0x1e7/0x5fa kernel/panic.c:231 kcsan_report+0x67b/0x680 kernel/kcsan/report.c:634 kcsan_setup_watchpoint+0x46a/0x4d0 kernel/kcsan/core.c:568 ksys_write+0x7f/0x180 fs/read_write.c:655 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x3e/0x50 fs/read_write.c:667 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45deb9 Code: 0d b4 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8e4aca3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000038500 RCX: 000000000045deb9 RDX: 0000000000000002 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007ffed37bfc1f R14: 00007f8e4aca49c0 R15: 000000000118bf2c Kernel Offset: disabled Rebooting in 86400 seconds..