__vb2_cleanup_fileio+0x109/0x1f0 drivers/media/common/videobuf2/videobuf2-core.c:2977 vb2_core_queue_release+0x27/0x150 drivers/media/common/videobuf2/videobuf2-core.c:2676 vb2_queue_release drivers/media/common/videobuf2/videobuf2-v4l2.c:956 [inline] _vb2_fop_release drivers/media/common/videobuf2/videobuf2-v4l2.c:1159 [inline] vb2_fop_release+0x16e/0x200 drivers/media/common/videobuf2/videobuf2-v4l2.c:1173 v4l2_release+0x1af/0x370 drivers/media/v4l2-core/v4l2-dev.c:468 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xef/0x4e0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2c1/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:3579! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 19686 Comm: syz.3.3982 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:filemap_fault+0x1215/0x1290 mm/filemap.c:3579 Code: 38 c1 0f 8c 8e fc ff ff 4c 89 e7 e8 25 29 2d 00 e9 81 fc ff ff e8 1b 54 c6 ff 48 89 df 48 c7 c6 c0 b6 94 8b e8 9c f3 2c ff 90 <0f> 0b e8 04 54 c6 ff 48 8b 3c 24 48 c7 c6 40 bd 94 8b e8 84 f3 2c RSP: 0018:ffffc9000eee76a0 EFLAGS: 00010246 RAX: fd20264617b1d700 RBX: ffffea0000e7ff00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8daba6d0 RDI: 00000000ffffffff RBP: ffffc9000eee77d8 R08: ffffffff8fc479f7 R09: 1ffffffff1f88f3e R10: dffffc0000000000 R11: fffffbfff1f88f3f R12: dffffc0000000000 R13: 1ffffd40001cffe1 R14: ffffea0000e7ff18 R15: ffffea0000e7ff08 FS: 00007fd7efa566c0(0000) GS:ffff888125aad000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000040 CR3: 0000000031dde000 CR4: 00000000003526f0 Call Trace: __do_fault+0x138/0x390 mm/memory.c:5302 do_read_fault mm/memory.c:5737 [inline] do_fault mm/memory.c:5871 [inline] do_pte_missing+0x2206/0x3330 mm/memory.c:4416 handle_pte_fault mm/memory.c:6255 [inline] __handle_mm_fault mm/memory.c:6393 [inline] handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6562 do_user_addr_fault+0x764/0x1380 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x71/0xd0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0010:rep_movs_alternative+0x4a/0x90 arch/x86/lib/copy_user_64.S:74 Code: 40 04 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb c5 a4 c3 cc cc cc cc 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48 RSP: 0018:ffffc9000eee7cd8 EFLAGS: 00050202 RAX: 00007ffffffff001 RBX: 0000000000000050 RCX: 0000000000000050 RDX: 0000000000000001 RSI: 0000200000000040 RDI: ffffc9000eee7d60 RBP: ffffc9000eee7ea8 R08: ffffc9000eee7daf R09: 1ffff92001ddcfb5 R10: dffffc0000000000 R11: fffff52001ddcfb6 R12: ffffffff8c89f478 R13: 0000000040505330 R14: ffffc9000eee7d60 R15: 0000200000000040 copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] _inline_copy_from_user include/linux/uaccess.h:185 [inline] _copy_from_user+0x7a/0xb0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:223 [inline] snd_seq_ioctl+0x1e0/0x450 sound/core/seq/seq_clientmgr.c:2244 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd7eeb8f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd7efa56038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd7eede5fa0 RCX: 00007fd7eeb8f749 RDX: 0000200000000040 RSI: 0000000040505330 RDI: 0000000000000003 RBP: 00007fd7eec13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd7eede6038 R14: 00007fd7eede5fa0 R15: 00007fff14a52288 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_fault+0x1215/0x1290 mm/filemap.c:3579 Code: 38 c1 0f 8c 8e fc ff ff 4c 89 e7 e8 25 29 2d 00 e9 81 fc ff ff e8 1b 54 c6 ff 48 89 df 48 c7 c6 c0 b6 94 8b e8 9c f3 2c ff 90 <0f> 0b e8 04 54 c6 ff 48 8b 3c 24 48 c7 c6 40 bd 94 8b e8 84 f3 2c RSP: 0018:ffffc9000eee76a0 EFLAGS: 00010246 RAX: fd20264617b1d700 RBX: ffffea0000e7ff00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8daba6d0 RDI: 00000000ffffffff RBP: ffffc9000eee77d8 R08: ffffffff8fc479f7 R09: 1ffffffff1f88f3e R10: dffffc0000000000 R11: fffffbfff1f88f3f R12: dffffc0000000000 R13: 1ffffd40001cffe1 R14: ffffea0000e7ff18 R15: ffffea0000e7ff08 FS: 00007fd7efa566c0(0000) GS:ffff8881259ad000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000040 CR3: 0000000031dde000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083 DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 40 04 00 rex add $0x0,%al 3: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) a: 00 00 00 d: 0f 1f 00 nopl (%rax) 10: 48 8b 06 mov (%rsi),%rax 13: 48 89 07 mov %rax,(%rdi) 16: 48 83 c6 08 add $0x8,%rsi 1a: 48 83 c7 08 add $0x8,%rdi 1e: 83 e9 08 sub $0x8,%ecx 21: 74 db je 0xfffffffe 23: 83 f9 08 cmp $0x8,%ecx 26: 73 e8 jae 0x10 28: eb c5 jmp 0xffffffef * 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction 2c: c3 ret 2d: cc int3 2e: cc int3 2f: cc int3 30: cc int3 31: 48 8b 06 mov (%rsi),%rax 34: 48 89 07 mov %rax,(%rdi) 37: 48 8d 47 08 lea 0x8(%rdi),%rax 3b: 48 83 e0 f8 and $0xfffffffffffffff8,%rax 3f: 48 rex.W