syzbot
kernel BUG in prog_array_map_poke_run
Status:
auto-obsoleted due to no activity on 2024/12/30 00:14
Bug presence:
origin:upstream
Labels:
missing-backport
[Documentation on labels]
Reported-by: syzbot+ac89e36969de34892034@syzkaller.appspotmail.com
First crash: 991d, last: 933d
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Last patch testing requests (10)
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Fix bisection attempts (1)
| Created |
Duration |
User |
Patch |
Repo |
Result |
| 2023/12/22 19:52 |
6h49m
|
fix candidate
|
|
upstream |
OK
(1)
job log
|
Sample crash report:
------------[ cut here ]------------
kernel BUG at kernel/bpf/arraymap.c:1037!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3524 Comm: kworker/0:4 Not tainted 5.15.145-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events prog_array_map_clear_deferred
RIP: 0010:prog_array_map_poke_run+0x65d/0x670 kernel/bpf/arraymap.c:1037
Code: d7 e7 ff 48 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f6 d6 e7 ff 0f 0b e9 18 fa ff ff e8 ea d6 e7 ff 0f 0b e8 e3 d6 e7 ff <0f> 0b e8 dc d6 e7 ff 0f 0b e8 d5 d6 e7 ff 0f 0b 0f 1f 00 55 48 89
RSP: 0018:ffffc90002db7ab8 EFLAGS: 00010293
RAX: ffffffff8198508d RBX: 00000000fffffff0 RCX: ffff8880201e0000
RDX: 0000000000000000 RSI: 00000000fffffff0 RDI: 00000000ffffffea
RBP: ffff88801b311c90 R08: ffffffff81984e30 R09: fffff520005b6f29
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881470383d0
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7200280d58 CR3: 000000001a6e3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
fd_array_map_delete_elem+0x13c/0x230 kernel/bpf/arraymap.c:830
bpf_fd_array_map_clear kernel/bpf/arraymap.c:878 [inline]
prog_array_map_clear_deferred+0xfb/0x210 kernel/bpf/arraymap.c:1057
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
Modules linked in:
---[ end trace 70b96be372a669b6 ]---
RIP: 0010:prog_array_map_poke_run+0x65d/0x670 kernel/bpf/arraymap.c:1037
Code: d7 e7 ff 48 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 f6 d6 e7 ff 0f 0b e9 18 fa ff ff e8 ea d6 e7 ff 0f 0b e8 e3 d6 e7 ff <0f> 0b e8 dc d6 e7 ff 0f 0b e8 d5 d6 e7 ff 0f 0b 0f 1f 00 55 48 89
RSP: 0018:ffffc90002db7ab8 EFLAGS: 00010293
RAX: ffffffff8198508d RBX: 00000000fffffff0 RCX: ffff8880201e0000
RDX: 0000000000000000 RSI: 00000000fffffff0 RDI: 00000000ffffffea
RBP: ffff88801b311c90 R08: ffffffff81984e30 R09: fffff520005b6f29
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881470383d0
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555d18788 CR3: 000000001d9b7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
* Struck through repros no longer work on HEAD.