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[vfs?] kernel panic: stack is corrupted in sys_ppoll
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syzbot
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Jan 21, 2023, 2:01:46 PM
1/21/23
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Hello,
syzbot found the following issue on:
HEAD commit: 0966d385830d riscv: Fix auipc+jalr relocation range checks
git tree: git://
git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git
fixes
console output:
https://syzkaller.appspot.com/x/log.txt?x=16bc7051480000
kernel config:
https://syzkaller.appspot.com/x/.config?x=6295d67591064921
dashboard link:
https://syzkaller.appspot.com/bug?extid=4cf0ba8d0440a6e51ae9
compiler: riscv64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: riscv64
CC: [
linux-...@vger.kernel.org
linux-...@vger.kernel.org
vi...@zeniv.linux.org.uk
]
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+4cf0ba...@syzkaller.appspotmail.com
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: sys_ppoll+0x1b0/0x1b0 fs/select.c:1101
CPU: 0 PID: 1949 Comm: dhcpcd 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
[<ffffffff804fc2ce>] d_mark_dontcache+0x0/0xba fs/select.c:1101
[<ffffffff80005716>] ret_from_syscall+0x0/0x2
SMP: stopping secondary CPUs
Rebooting in 86400 seconds..
---
This report is generated by a bot. It may contain errors.
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https://goo.gl/tpsmEJ
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syzbot
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Apr 17, 2023, 2:57:37 PM
4/17/23
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Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
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