syzbot


kernel panic: corrupted stack end in do_idle (3)

Status: moderation: reported on 2025/08/30 15:56
Subsystems: kernel
[Documentation on labels]
Reported-by: syzbot+0b28503bc99a1a0f684d@syzkaller.appspotmail.com
First crash: 111d, last: 9d16h
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel panic: corrupted stack end in do_idle kernel 2 11 461d 496d 0/29 auto-obsoleted due to no activity on 2024/12/19 09:40
upstream kernel panic: corrupted stack end in do_idle (2) kernel 2 1 205d 201d 0/29 auto-obsoleted due to no activity on 2025/08/22 20:43

Sample crash report:
Kernel panic - not syncing: corrupted stack end detected inside scheduler
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:82285580 r6:8281b500 r5:00000000 r4:822942f8
[<80201b08>] (show_stack) from [<8021ec54>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021ec54>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021ec00>] (dump_stack_lvl) from [<8021ec94>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a7bd14
[<8021ec7c>] (dump_stack) from [<802025f8>] (vpanic+0xe0/0x2e8 kernel/panic.c:489)
[<80202518>] (vpanic) from [<80202834>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:626)
 r7:826c31c0
[<80202800>] (panic) from [<81a822a8>] (schedule_debug kernel/sched/core.c:5816 [inline])
[<80202800>] (panic) from [<81a822a8>] (__schedule+0x127c/0x1280 kernel/sched/core.c:6740)
 r3:57ac6e9d r2:802908ac r1:822942f8 r0:82285580
[<81a8102c>] (__schedule) from [<81a82688>] (schedule_idle+0x24/0x68 kernel/sched/core.c:6986)
 r10:00000000 r9:00000000 r8:00000000 r7:8280c710 r6:8281b500 r5:8280c6d0
 r4:8281b500
[<81a82664>] (schedule_idle) from [<802b10c8>] (do_idle+0x198/0x2d8 kernel/sched/idle.c:360)
 r5:8280c6d0 r4:00000000
[<802b0f30>] (do_idle) from [<802b1538>] (cpu_startup_entry+0x30/0x34 kernel/sched/idle.c:430)
 r10:8281aff4 r9:823bd674 r8:00000000 r7:8280c680 r6:deffc06c r5:828222e8
 r4:000000ed
[<802b1508>] (cpu_startup_entry) from [<81a7f27c>] (kernel_init+0x0/0x138 init/main.c:757)
[<81a7f19c>] (rest_init) from [<82601338>] (start_kernel+0x738/0x754 init/main.c:1111)
[<82600c00>] (start_kernel) from [<00000000>] (0x0)
Rebooting in 86400 seconds..

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/06 15:09 upstream 416f99c3b16f cee4cb10 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 kernel panic: corrupted stack end in do_idle
2025/10/09 02:12 upstream cd5a0afbdf80 7e2882b3 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 kernel panic: corrupted stack end in do_idle
2025/10/02 13:29 upstream 7f7072574127 49379ee0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 kernel panic: corrupted stack end in do_idle
2025/08/26 15:49 upstream fab1beda7597 e12e5ba4 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 kernel panic: corrupted stack end in do_idle
* Struck through repros no longer work on HEAD.