syzbot


kernel panic: stack is corrupted in ksys_write

Status: fixed on 2023/02/24 13:50
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+12236cc75bca8212f338@syzkaller.appspotmail.com
Fix commit: b81d591386c3 riscv: Increase stack size under KASAN
First crash: 656d, last: 656d

Sample crash report:
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ksys_write+0x224/0x224 fs/read_write.c:650
CPU: 1 PID: 2033 Comm: sshd Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff8000a228>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:113
[<ffffffff831668cc>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:119
[<ffffffff831756ba>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff831756ba>] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:106
[<ffffffff83175742>] dump_stack+0x1c/0x24 lib/dump_stack.c:113
[<ffffffff83166fa8>] panic+0x24a/0x634 kernel/panic.c:233
[<ffffffff831a1392>] warn_bogus_irq_restore+0x0/0x34 kernel/panic.c:670
[<ffffffff804c8bc8>] sys_write+0x0/0x36 fs/read_write.c:650
SMP: stopping secondary CPUs
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/09/04 12:01 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 0966d385830d 28811d0a .config console log report info ci-qemu2-riscv64 kernel panic: stack is corrupted in ksys_write
* Struck through repros no longer work on HEAD.