INFO: task hung in bpf_map_offload_map

INFO: task hung in bpf_map_offload_map_alloc

Status: auto-obsoleted due to no activity on 2024/09/11 23:59
Reported-by: syzbot+26db000d18b9f2a9586d@syzkaller.appspotmail.com
First crash: 170d, last: 170d

▶ ▼ Similar bugs (2)

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in bpf_map_offload_map_alloc bpf				4	161d	183d	0/28	auto-obsoleted due to no activity on 2024/09/11 11:25
linux-6.1	INFO: task hung in bpf_map_offload_map_alloc				1	163d	163d	0/3	auto-obsoleted due to no activity on 2024/09/19 07:05

Sample crash report:

INFO: task syz-executor.2:7823 blocked for more than 143 seconds.
      Not tainted 5.15.160-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:28824 pid: 7823 ppid:  7289 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6518
 __mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
 bpf_map_offload_map_alloc+0x152/0x6b0 kernel/bpf/offload.c:378

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/06/03 23:59	linux-5.15.y	c61bd26ae81a	a1feae05	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	INFO: task hung in bpf_map_offload_map_alloc

* ~~Struck through~~ repros no longer work on HEAD.