syzbot
corrupted report
Status:
upstream: reported on 2019/04/11 04:14
Subsystems:
gfs2
sysv
ext4
hfsplus
[Documentation on labels]
Reported-by: syzbot+575a05c0b730cb786c77@syzkaller.appspotmail.com
First crash: 2672d, last: 1246d
Sample crash report:
list_del corruption, ffff888046f0fa90->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:45!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 20112 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead.
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45
Code: e8 11 43 f7 ff 0f 0b 48 89 ee 48 c7 c7 40 e4 b3 88 e8 00 43 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 e3 b3 88 e8 ec 42 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 e0 e3 b3 88 e8 d8 42 f7 ff 0f 0b
audit: type=1804 audit(1678125452.686:318): pid=20145 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir877640350/syzkaller.KAj8Kv/231/bus" dev="sda1" ino=14676 res=1
RSP: 0018:ffff888046f0f970 EFLAGS: 00010086
RAX: 000000000000004e RBX: ffff888046f0fa78 RCX: 0000000000000000
RDX: 000000000001abc7 RSI: ffffffff814dff01 RDI: ffffed1008de1f20
RBP: ffff888046f0fa90 R08: 000000000000004e R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200
R13: dead000000000100 R14: ffff888046f0fa98 R15: 0000000000000007
list_del corruption, ffff88804792fa90->next is LIST_POISON1 (dead000000000100)
FS: 00007f4250b49700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
------------[ cut here ]------------
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel BUG at lib/list_debug.c:45!
CR2: 0000001b2fa24000 CR3: 000000009f56b000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__list_del_entry include/linux/list.h:117 [inline]
list_del include/linux/list.h:125 [inline]
__remove_wait_queue include/linux/wait.h:184 [inline]
remove_wait_queue+0x2c/0x180 kernel/sched/wait.c:44
__tipc_sendstream+0x373/0x9d0 net/tipc/socket.c:1449
tipc_sendstream+0x4c/0x70 net/tipc/socket.c:1414
sock_sendmsg_nosec net/socket.c:651 [inline]
sock_sendmsg+0xc3/0x120 net/socket.c:661
sock_write_iter+0x287/0x3c0 net/socket.c:966
call_write_iter include/linux/fs.h:1821 [inline]
new_sync_write fs/read_write.c:474 [inline]
__vfs_write+0x51b/0x770 fs/read_write.c:487
vfs_write+0x1f3/0x540 fs/read_write.c:549
ksys_write+0x12b/0x2a0 fs/read_write.c:599
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f42525d70f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4250b49168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f42526f6f80 RCX: 00007f42525d70f9
RDX: 000000002000011a RSI: 0000000020000040 RDI: 0000000000000006
RBP: 00007f4252632ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffdcee434f R14: 00007f4250b49300 R15: 0000000000022000
Modules linked in:
---[ end trace be7d09b19e64996e ]---
invalid opcode: 0000 [#2] PREEMPT SMP KASAN
RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45
CPU: 1 PID: 20117 Comm: syz-executor.3 Tainted: G D 4.19.211-syzkaller #0
Code: e8 11 43 f7 ff 0f 0b 48 89 ee 48 c7 c7 40 e4 b3 88 e8 00 43 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 e3 b3 88 e8 ec 42 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 e0 e3 b3 88 e8 d8 42 f7 ff 0f 0b
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RSP: 0018:ffff888046f0f970 EFLAGS: 00010086
RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45
RAX: 000000000000004e RBX: ffff888046f0fa78 RCX: 0000000000000000
Code: e8 11 43 f7 ff 0f 0b 48 89 ee 48 c7 c7 40 e4 b3 88 e8 00 43 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 e3 b3 88 e8 ec 42 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 e0 e3 b3 88 e8 d8 42 f7 ff 0f 0b
RDX: 000000000001abc7 RSI: ffffffff814dff01 RDI: ffffed1008de1f20
RSP: 0018:ffff88804792f970 EFLAGS: 00010086
RBP: ffff888046f0fa90 R08: 000000000000004e R09: 0000000000000000
RAX: 000000000000004e RBX: ffff88804792fa78 RCX: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200
RDX: 0000000000025aa5 RSI: ffffffff814dff01 RDI: ffffed1008f25f20
R13: dead000000000100 R14: ffff888046f0fa98 R15: 0000000000000007
RBP: ffff88804792fa90 R08: 000000000000004e R09: 0000000000000000
FS: 00007f4250b49700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
R10: 0000000000000005 R11: ffffffff8c66505b R12: dead000000000200
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
R13: dead000000000100 R14: ffff88804792fa98 R15: 0000000000000007
CR2: 0000001b2fa24000 CR3: 000000009f56b000 CR4: 00000000003406f0
FS: 00007f4250b28700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
CR2: 00007f614f1692d8 CR3: 000000009f56b000 CR4: 00000000003406e0
Struck through repros no longer work on HEAD.