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: 5d15h, last: 5d15h
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 355d 390d 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 99d 95d 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 Not tainted syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:8281f77c r5:00000000 r4:82260500
[<80201b08>] (show_stack) from [<8021fb74>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021fb74>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021fb20>] (dump_stack_lvl) from [<8021fbb4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a77d18
[<8021fb9c>] (dump_stack) from [<80202624>] (vpanic+0x10c/0x30c kernel/panic.c:430)
[<80202518>] (vpanic) from [<80202858>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:566)
 r7:826c2080
[<80202824>] (panic) from [<81a3d880>] (schedule_debug kernel/sched/core.c:5918 [inline])
[<80202824>] (panic) from [<81a3d880>] (__schedule+0xf64/0xf68 kernel/sched/core.c:6838)
 r3:57ac6e9d r2:00000000 r1:82260500 r0:82251904
[<81a3c91c>] (__schedule) from [<81a3dbd0>] (schedule_idle+0x24/0x68 kernel/sched/core.c:7084)
 r10:00000000 r9:00000000 r8:00000000 r7:8280c6d0 r6:8281b240 r5:8280c690
 r4:8281b240
[<81a3dbac>] (schedule_idle) from [<802b2984>] (do_idle+0x198/0x2c8 kernel/sched/idle.c:358)
 r5:8280c690 r4:00000000
[<802b27ec>] (do_idle) from [<802b2de4>] (cpu_startup_entry+0x30/0x34 kernel/sched/idle.c:428)
 r10:8281ad74 r9:8238a790 r8:00000000 r7:8280c640 r6:deffc06c r5:82822078
 r4:000000ed
[<802b2db4>] (cpu_startup_entry) from [<81a3abac>] (kernel_init+0x0/0x138 init/main.c:744)
[<81a3aacc>] (rest_init) from [<826012c4>] (start_kernel+0x734/0x750 init/main.c:1097)
[<82600b90>] (start_kernel) from [<00000000>] (0x0)
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
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.