syzbot


BUG: sleeping function called from invalid context in bpf_prog_alloc_no_stats

Status: upstream: reported C repro on 2024/02/18 18:08
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+d81da6ebba545c771dbf@syzkaller.appspotmail.com
First crash: 73d, last: 73d
Bug presence (2)
Date Name Commit Repro Result
2024/02/18 linux-5.15.y (ToT) 6139f2a02fe0 C [report] BUG: sleeping function called from invalid context in getname_flags
2024/02/18 upstream (ToT) 6c160f16be5d C Didn't crash
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2024/02/26 14:04 6h06m fix candidate upstream job log (1)

Sample crash report:
BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 9534, name: syz-executor200
no locks held by syz-executor200/9534.
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 9534 Comm: syz-executor200 Not tainted 5.15.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 ___might_sleep+0x547/0x6a0 kernel/sched/core.c:9626
 might_alloc include/linux/sched/mm.h:209 [inline]
 slab_pre_alloc_hook+0x44/0xc0 mm/slab.h:492
 slab_alloc_node mm/slub.c:3134 [inline]
 __kmalloc_node+0x71/0x390 mm/slub.c:4451
 kmalloc_node include/linux/slab.h:614 [inline]
 __vmalloc_area_node mm/vmalloc.c:2910 [inline]
 __vmalloc_node_range+0x2e2/0x8c0 mm/vmalloc.c:3029
 __vmalloc_node mm/vmalloc.c:3079 [inline]
 __vmalloc+0x75/0x80 mm/vmalloc.c:3093
 bpf_prog_alloc_no_stats+0x33/0x2f0 kernel/bpf/core.c:90
 bpf_prog_alloc+0x18/0x1d0 kernel/bpf/core.c:124
 bpf_prog_load+0x800/0x1b60 kernel/bpf/syscall.c:2272
 __sys_bpf+0x343/0x670 kernel/bpf/syscall.c:4623
 __do_sys_bpf kernel/bpf/syscall.c:4727 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4725 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4725
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f480c5acee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007ffec852e8c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f480c5acee9
RDX: 0000000000000049 RSI: 0000000020000980 RDI: 0000000000000005
RBP: 00000000000f4240 R08: 0000000000000000 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000024c43
R13: 00007ffec852e8dc R14: 00007ffec852e8f0 R15: 00007ffec852e8e0
 </TASK>
BUG: scheduling while atomic: syz-executor200/9534/0x00000002
no locks held by syz-executor200/9534.
Modules linked in:
Preemption disabled at:
[<0000000000000000>] 0x0

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/18 18:07 linux-5.15.y 6139f2a02fe0 578f7538 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf BUG: sleeping function called from invalid context in bpf_prog_alloc_no_stats
* Struck through repros no longer work on HEAD.