syzbot


invalid opcode in schedule

Status: moderation: reported on 2024/09/11 22:35
Subsystems: modules
[Documentation on labels]
Reported-by: syzbot+f43202dbeab5b77ac10b@syzkaller.appspotmail.com
First crash: 27d, last: 27d

Sample crash report:
loop0: detected capacity change from 0 to 4096
ntfs3: loop0: Different NTFS sector size (2048) and media sector size (512).
UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5114 Comm: syz.0.0 Not tainted 6.11.0-rc6-syzkaller-00326-gd1f2d51b711a #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__schedule_loop kernel/sched/core.c:6606 [inline]
RIP: 0010:schedule+0x14a/0x320 kernel/sched/core.c:6621
Code: 89 f6 e8 99 cb ad f5 48 89 eb 48 c1 eb 03 eb 0a 48 f7 45 00 08 00 00 00 74 2c bf 01 00 00 00 e8 dc d7 a0 f5 31 ff e8 45 b4 ff <ff> bf 01 00 00 00 e8 6b d9 a0 f5 42 80 3c 23 00 74 d4 48 89 ef e8
RSP: 0018:ffffc900030cf048 EFLAGS: 00010246
RAX: b9bd77815cf47f00 RBX: 1ffff11003f30000 RCX: 1ffff92000619de4
RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: ffffffff8c608e80
RBP: ffff88801f980000 R08: ffffffff9018776f R09: 1ffffffff2030eed
R10: dffffc0000000000 R11: fffffbfff2030eee R12: dffffc0000000000
R13: 1ffff92000619e10 R14: ffffffff8bc22700 R15: ffff88801f981278
FS:  00007f53fff026c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa5c21d4440 CR3: 0000000012538000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common+0x3ea/0x6d0 kernel/sched/completion.c:116
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:264
 call_usermodehelper_exec+0x3cb/0x4a0 kernel/umh.c:442
 call_modprobe kernel/module/kmod.c:103 [inline]
 __request_module+0x3ee/0x650 kernel/module/kmod.c:173
 ctrl_getfamily+0x28e/0x6b0 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+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204
 __do_sys_sendto net/socket.c:2216 [inline]
 __se_sys_sendto net/socket.c:2212 [inline]
 __x64_sys_sendto+0xde/0x100 net/socket.c:2212
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f53ff17ed8c
Code: 2a 5a 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 5a 02 00 48 8b
RSP: 002b:00007f53fff00ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f53fff00fc0 RCX: 00007f53ff17ed8c
RDX: 000000000000001c RSI: 00007f53fff01010 RDI: 000000000000000b
RBP: 0000000000000000 R08: 00007f53fff00f14 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000000b
R13: 00007f53fff00f68 R14: 00007f53fff01010 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__schedule_loop kernel/sched/core.c:6606 [inline]
RIP: 0010:schedule+0x14a/0x320 kernel/sched/core.c:6621
Code: 89 f6 e8 99 cb ad f5 48 89 eb 48 c1 eb 03 eb 0a 48 f7 45 00 08 00 00 00 74 2c bf 01 00 00 00 e8 dc d7 a0 f5 31 ff e8 45 b4 ff <ff> bf 01 00 00 00 e8 6b d9 a0 f5 42 80 3c 23 00 74 d4 48 89 ef e8
RSP: 0018:ffffc900030cf048 EFLAGS: 00010246
RAX: b9bd77815cf47f00 RBX: 1ffff11003f30000 RCX: 1ffff92000619de4
RDX: dffffc0000000000 RSI: ffffffff8c0ad560 RDI: ffffffff8c608e80
RBP: ffff88801f980000 R08: ffffffff9018776f R09: 1ffffffff2030eed
R10: dffffc0000000000 R11: fffffbfff2030eee R12: dffffc0000000000
R13: 1ffff92000619e10 R14: ffffffff8bc22700 R15: ffff88801f981278
FS:  00007f53fff026c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa5c21d4440 CR3: 0000000012538000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/07 22:25 upstream d1f2d51b711a 9750182a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root invalid opcode in schedule
* Struck through repros no longer work on HEAD.