Hello, syzbot found the following issue on:
HEAD commit: 075dbe9f6e3c Merge tag 'soc-ep93xx-dt-6.12' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15f07a80580000 kernel config: https://syzkaller.appspot.com/x/.config?x=86254f9e0a8f2c98 dashboard link: https://syzkaller.appspot.com/bug?extid=0ec1e96c2cdf5c0e512a compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/1be80941df60/disk-075dbe9f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/494a9ac89c09/vmlinux-075dbe9f.xz kernel image: https://storage.googleapis.com/syzbot-assets/919788d8c731/bzImage-075dbe9f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: [email protected] audit: type=1400 audit(6022412112.141:243086): avc: denied { read } for pid=2950 comm="syslogd" name="log" dev="sda1" ino=1915 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=0 audit: type=1400 audit(6022412112.181:243087): avc: denied { read } for pid=2950 comm="syslogd" name="log" dev="sda1" ino=1915 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=0 ================================================================== BUG: KCSAN: assert: race in __block_task kernel/sched/sched.h:2770 [inline] BUG: KCSAN: assert: race in dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7177 race at unknown origin, with assert no writes to 0xffff888101764268 of 4 bytes by task 29 on cpu 1: __block_task kernel/sched/sched.h:2770 [inline] dequeue_entities+0x6df/0x760 kernel/sched/fair.c:7177 pick_next_entity kernel/sched/fair.c:5627 [inline] pick_task_fair kernel/sched/fair.c:8856 [inline] pick_next_task_fair+0x7d/0x410 kernel/sched/fair.c:8876 __pick_next_task kernel/sched/core.c:5955 [inline] pick_next_task kernel/sched/core.c:6477 [inline] __schedule+0x284/0x940 kernel/sched/core.c:6629 __schedule_loop kernel/sched/core.c:6752 [inline] schedule+0x55/0xc0 kernel/sched/core.c:6767 kauditd_thread+0x56b/0x650 kernel/audit.c:911 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 value changed: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 29 Comm: kauditd Not tainted 6.11.0-syzkaller-11558-g075dbe9f6e3c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 ================================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at [email protected]. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
