syzbot


KCSAN: data-race in getrusage / vms_clear_ptes

Status: moderation: reported on 2024/09/23 03:32
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+31cd52ba68feee156393@syzkaller.appspotmail.com
First crash: 186d, last: 9h01m
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [mm?] KCSAN: data-race in try_to_migrate_one / zap_page_range_single 1 (2) 2025/03/15 11:52

Sample crash report:
==================================================================
BUG: KCSAN: data-race in getrusage / vms_clear_ptes

write to 0xffff8881033d80f8 of 8 bytes by task 26497 on cpu 1:
 update_hiwater_rss include/linux/mm.h:2660 [inline]
 vms_clear_ptes+0x1a4/0x300 mm/vma.c:1136
 vms_complete_munmap_vmas+0x17b/0x480 mm/vma.c:1186
 do_vmi_align_munmap+0x346/0x390 mm/vma.c:1445
 do_vmi_munmap+0x1eb/0x230 mm/vma.c:1493
 __vm_munmap+0x196/0x270 mm/vma.c:2956
 __do_sys_munmap mm/mmap.c:1084 [inline]
 __se_sys_munmap mm/mmap.c:1081 [inline]
 __x64_sys_munmap+0x36/0x40 mm/mmap.c:1081
 x64_sys_call+0xe1b/0x2e10 arch/x86/include/generated/asm/syscalls_64.h:12
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff8881033d80f8 of 8 bytes by task 26494 on cpu 0:
 get_mm_hiwater_rss include/linux/mm.h:2647 [inline]
 setmax_mm_hiwater_rss include/linux/mm.h:2677 [inline]
 getrusage+0xa17/0xb70 kernel/sys.c:1876
 io_sq_thread+0x5de/0x10e0 io_uring/sqpoll.c:310
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

value changed: 0x00000000000014e4 -> 0x00000000000016af

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 26494 Comm: iou-sqp-26493 Not tainted 6.14.0-syzkaller-05877-g1a9239bb4253 #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================

Crashes (96):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/03/27 21:50 upstream 1a9239bb4253 6c09fb82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/25 08:44 upstream 3ba7dfb8da62 875573af .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/23 20:07 upstream 586de92313fc 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/23 09:56 upstream 183601b78a9b 4e8d3850 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/22 04:52 upstream d07de43e3f05 c6512ef7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/19 17:14 upstream 81e4f8d68c66 e20d7b13 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/18 08:07 upstream fc444ada1310 ce3352cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/16 07:33 upstream 31d7109a19f6 e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/15 15:19 upstream a29967be967e e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/13 14:45 upstream b7f94fcf5546 44be8b44 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/12 05:54 upstream 0b46b049d6ec ee70e6db .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/10 15:30 upstream 80e54e84911a 16256247 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/09 04:27 upstream b7c90e3e717a 163f510d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/08 15:53 upstream 21e4543a2e2f 7e3bd60d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/04 16:19 upstream 99fa936e8e4f c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/03/02 07:09 upstream ece144f151ac c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/26 02:21 upstream 2a1944bff549 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/23 21:19 upstream 27102b38b8ca d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/23 04:21 upstream 5cf80612d3f7 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/22 18:43 upstream ff202c5028a1 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/21 18:59 upstream 8a61cb6e150e d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/21 09:20 upstream 334426094588 0808a665 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/19 21:49 upstream 6537cfb395f3 b257a9b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/18 06:52 upstream 2408a807bfc3 429ea007 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/17 15:57 upstream 0ad2507d5d93 4121cf9d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/16 07:40 upstream 496659003dac 40a34ec9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/12 12:52 upstream 09fbf3d50205 b27c2402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/10 21:59 upstream a64dcfb451e2 43f51a00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/10 04:49 upstream 69b54314c975 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/09 07:48 upstream 9946eaf552b1 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/08 22:23 upstream 8f6629c004b1 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/06 07:34 upstream 92514ef226f5 577d049b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/04 10:00 upstream 0de63bb7d919 8f267cef .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/02/02 09:04 upstream cabb4685d57e 568559e4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/31 17:01 upstream 69e858e0b8b2 aa47157c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/31 08:37 upstream 69e858e0b8b2 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/30 16:23 upstream 72deda0abee6 4c6ac32f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/28 05:59 upstream 805ba04cb7cc 18070896 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/26 16:30 upstream aa22f4da2a46 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/25 16:07 upstream b46c89c08f41 9fbd772e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/24 03:34 upstream d0d106a2bd21 521b0ce3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/22 11:05 upstream c4b9570cfb63 da72ac06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/22 06:58 upstream b9d8a295ed6b da72ac06 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/18 23:20 upstream fda5e3f28400 f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/18 02:14 upstream 595523945be0 f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/17 10:37 upstream 9bffa1ad25b8 f9e07a6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2025/01/16 23:33 upstream ce69b4019001 f9e07a6e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2024/10/14 14:17 upstream 6485cf5ea253 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2024/10/09 22:17 upstream 75b607fab38d 56fb2cb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2024/09/28 04:18 upstream 3630400697a3 440b26ec .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
2024/09/23 03:31 upstream af9c191ac2a0 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-kcsan-gce KCSAN: data-race in getrusage / vms_clear_ptes
* Struck through repros no longer work on HEAD.