Hello, syzbot found the following issue on: HEAD commit: 480e035fc4c7 Merge tag 'drm-next-2024-03-13' of https://gi.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=1167944e180000 kernel config: https://syzkaller.appspot.com/x/.config?x=c046bf13ef8a8472 dashboard link: https://syzkaller.appspot.com/bug?extid=2f4f478b78801c186d39 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=130cb701180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=178e0db9180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/82840b143668/disk-480e035f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/448db0f2aaae/vmlinux-480e035f.xz kernel image: https://storage.googleapis.com/syzbot-assets/84c11f014272/bzImage-480e035f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2f4f478b78801c186d39@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5063 at kernel/softirq.c:362 __local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362 Modules linked in: CPU: 0 PID: 5063 Comm: syz-executor103 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:362 Code: 3b 44 24 60 75 52 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 0f 0b 90 e9 ca fe ff ff e8 55 00 00 00 eb 9c 90 <0f> 0b 90 e9 fa fe ff ff 48 c7 c1 8c 33 86 8f 80 e1 07 80 c1 03 38 RSP: 0018:ffffc9000443f8e0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 1ffff92000887f20 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000201 RDI: ffffffff895b387a RBP: ffffc9000443f9a0 R08: ffff888020a859eb R09: 1ffff11004150b3d R10: dffffc0000000000 R11: ffffed1004150b3e R12: dffffc0000000000 R13: ffff88802e29ba00 R14: ffffc9000443f920 R15: 0000000000000201 FS: 00005555629fd380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8ef4f2501d CR3: 000000007ef10000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> spin_unlock_bh include/linux/spinlock.h:396 [inline] __sock_map_delete net/core/sock_map.c:424 [inline] sock_map_delete_elem+0xca/0x140 net/core/sock_map.c:446 bpf_prog_2c29ac5cdc6b1842+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run3+0x238/0x460 kernel/trace/bpf_trace.c:2421 trace_kmem_cache_free include/trace/events/kmem.h:114 [inline] kmem_cache_free+0x23c/0x2b0 mm/slub.c:4343 __sigqueue_free kernel/signal.c:451 [inline] collect_signal kernel/signal.c:594 [inline] __dequeue_signal+0x4ac/0x5c0 kernel/signal.c:616 dequeue_signal+0x169/0x5a0 kernel/signal.c:639 get_signal+0x5f7/0x1850 kernel/signal.c:2787 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0xc9/0x360 kernel/entry/common.c:212 do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f8ef4f03443 Code: 00 00 00 00 00 66 90 83 ff 03 74 7b 83 ff 02 b8 fa ff ff ff 49 89 ca 0f 44 f8 80 3d 3e 0c 05 00 00 74 14 b8 e6 00 00 00 0f 05 <f7> d8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 54 24 10 RSP: 002b:00007ffdd3126958 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6 RAX: fffffffffffffdfc RBX: 00000000000013c9 RCX: 00007f8ef4f03443 RDX: 00007ffdd3126970 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000000f4240 R08: 0000000000000010 R09: 00007f8ef4e9b0b0 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000012e67 R13: 00007ffdd31269ac R14: 00007ffdd31269c0 R15: 00007ffdd31269b0 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
