syzbot


kernel panic: stack is corrupted in call_usermodehelper_exec

Status: auto-obsoleted due to no activity on 2025/09/07 09:10
Subsystems: modules
[Documentation on labels]
Reported-by: syzbot+14d9438422f594f856bd@syzkaller.appspotmail.com
First crash: 415d, last: 171d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [modules?] kernel panic: stack is corrupted in call_usermodehelper_exec 0 (1) 2024/08/30 03:44
Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/09/07 08:49 20m retest repro upstream OK log
2025/06/29 08:24 15m retest repro upstream report log
2025/05/25 03:09 20m retest repro upstream OK log
2025/05/25 03:09 20m retest repro upstream OK log
2025/05/25 02:04 21m retest repro upstream OK log
2025/05/25 02:04 21m retest repro upstream OK log
2025/05/25 01:26 34m retest repro upstream OK log
2025/04/20 07:39 15m retest repro upstream report log
2025/03/16 01:08 16m retest repro upstream report log
2025/03/16 01:08 16m retest repro upstream report log

Sample crash report:
loop0: detected capacity change from 0 to 4096
ntfs3(loop0): Different NTFS sector size (2048) and media sector size (512).
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: call_usermodehelper_exec+0x497/0x4a0 kernel/umh.c:-1
CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.14.0-syzkaller-13443-g56f944529ec2 #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 panic+0x349/0x880 kernel/panic.c:354
 __stack_chk_fail+0x26/0x30 kernel/panic.c:841
 call_usermodehelper_exec+0x497/0x4a0 kernel/umh.c:-1
 call_modprobe kernel/module/kmod.c:102 [inline]
 __request_module+0x3f0/0x640 kernel/module/kmod.c:172
 ctrl_getfamily+0x289/0x6d0 net/netlink/genetlink.c:1450
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb38/0xf00 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2534
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x8c3/0xcd0 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:727
 __sys_sendto+0x365/0x4c0 net/socket.c:2180
 __do_sys_sendto net/socket.c:2187 [inline]
 __se_sys_sendto net/socket.c:2183 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2183
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2d3398effc
Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b
RSP: 002b:00007f2d3477eec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f2d3477efc0 RCX: 00007f2d3398effc
RDX: 000000000000001c RSI: 00007f2d3477f010 RDI: 0000000000000006
RBP: 0000000000000000 R08: 00007f2d3477ef14 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000006
R13: 00007f2d3477ef68 R14: 00007f2d3477f010 R15: 0000000000000000
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (18):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/04/05 23:39 upstream 56f944529ec2 1c65791e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2025/01/18 08:34 upstream ad26fc09dabf f2cb035c .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2025/01/16 03:41 upstream 619f0b6fad52 968edaf4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2025/01/07 22:41 upstream fbfd64d25c7a f3558dbf .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2025/01/05 15:19 upstream ab75170520d4 f3558dbf .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/12/21 23:20 upstream 499551201b5f d7f584ee .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/12/15 01:16 upstream a446e965a188 7cbfbb3a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/12/09 02:47 upstream 62b5a46999c7 9ac0fdc6 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/10/14 12:11 upstream 6485cf5ea253 084d8178 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/09/24 12:57 upstream abf2050f51fd 5643e0e9 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/09/08 05:15 upstream d1f2d51b711a 9750182a .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/09/08 03:49 upstream d1f2d51b711a 9750182a .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/09/08 02:22 upstream d1f2d51b711a 9750182a .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/09/08 01:07 upstream d1f2d51b711a 9750182a .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/09/07 23:41 upstream d1f2d51b711a 9750182a .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/08/30 03:43 upstream 3b9dfd9e5936 ee2602b8 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/08/30 02:48 upstream 3b9dfd9e5936 ee2602b8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
2024/08/19 10:49 upstream 47ac09b91bef 9f0ab3fb .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel panic: stack is corrupted in call_usermodehelper_exec
* Struck through repros no longer work on HEAD.