FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): error, invalid access to FAT (entry 0x000000ff) FAT-fs (loop6): Filesystem has been set read-only ------------[ cut here ]------------ WARNING: CPU: 1 PID: 18704 at kernel/events/core.c:1978 perf_group_attach+0x396/0x450 kernel/events/core.c:1978 Modules linked in: CPU: 1 PID: 18704 Comm: syz-executor.2 Not tainted 5.10.90 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:perf_group_attach+0x396/0x450 kernel/events/core.c:1978 Code: 48 c1 e8 03 42 80 3c 20 00 75 5f 48 8b 5b 10 48 83 eb 10 48 39 dd 75 d4 5b 5d 41 5c 41 5d 41 5e e9 1f ec f2 ff e8 1a ec f2 ff <0f> 0b e9 b1 fd ff ff 48 c7 c7 7c 38 47 85 e8 87 37 1e 00 e9 b9 fc RSP: 0018:ffff88806cf09ef0 EFLAGS: 00010046 RAX: 0000000080010002 RBX: ffff88800e4e0000 RCX: ffffffff814caacf RDX: ffff888044facbc0 RSI: ffffffff814cad96 RDI: ffff88800e4e0220 RBP: ffff888043ed3000 R08: 0000000000000001 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880329c9800 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88806cf3f748 FS: 0000555555a7b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f62cf3dfc50 CR3: 0000000031100000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: add_event_to_ctx kernel/events/core.c:2654 [inline] __perf_install_in_context+0x246/0x2d0 kernel/events/core.c:2805 remote_function kernel/events/core.c:88 [inline] remote_function+0x11d/0x1a0 kernel/events/core.c:68 flush_smp_call_function_queue+0x1b4/0x5d0 kernel/smp.c:395 __sysvec_call_function_single+0x92/0x370 arch/x86/kernel/smp.c:248 asm_call_irq_on_stack+0x12/0x20 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline] run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline] sysvec_call_function_single+0x7f/0xa0 arch/x86/kernel/smp.c:243 asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:643 RIP: 0010:call_rcu+0x266/0xa00 kernel/rcu/tree.c:3037 Code: 85 33 06 00 00 8b 85 28 01 00 00 65 ff 0d e2 8e d4 7e a8 02 0f 84 77 01 00 00 48 83 7c 24 08 00 0f 85 d0 00 00 00 ff 34 24 9d <48> 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 4c 89 c7 4c 89 44 24 RSP: 0018:ffff88803eecfcb8 EFLAGS: 00000246 RAX: 0000000000000d9f RBX: ffff888017ba23e0 RCX: 1ffffffff0a8de91 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812de1ce RBP: ffff88806cf3c030 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000044 R13: ffff88806cf3bf40 R14: ffff88806cf3c020 R15: ffff88806cf3bfd8 kmemleak_free_recursive include/linux/kmemleak.h:49 [inline] slab_free_hook mm/slub.c:1517 [inline] slab_free_freelist_hook+0x13a/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kmem_cache_free+0xa7/0x310 mm/slub.c:3165 __d_free fs/dcache.c:271 [inline] dentry_free+0xde/0x160 fs/dcache.c:348 __dentry_kill+0x47d/0x5c0 fs/dcache.c:593 dentry_kill fs/dcache.c:705 [inline] dput+0x76a/0xc40 fs/dcache.c:878 __fput+0x3aa/0x980 fs/file_table.c:294 task_work_run+0xe2/0x1a0 kernel/task_work.c:151 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0x155/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f4c9132472b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffe4e5aa370 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f4c9132472b RDX: 00007f4c9148c810 RSI: 0000000000000081 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007f4c91889000 R11: 0000000000000293 R12: 00007f4c9148c810 R13: 00007ffe4e5aa490 R14: 00007f4c91484f60 R15: 00000000002ae097 irq event stamp: 3488 hardirqs last enabled at (3487): [] __call_rcu kernel/rcu/tree.c:2995 [inline] hardirqs last enabled at (3487): [] call_rcu+0x3be/0xa00 kernel/rcu/tree.c:3036 hardirqs last disabled at (3488): [] sysvec_call_function_single+0xb/0xa0 arch/x86/kernel/smp.c:243 softirqs last enabled at (3434): [] sock_orphan include/net/sock.h:1873 [inline] softirqs last enabled at (3434): [] sk_common_release+0x147/0x390 net/core/sock.c:3285 softirqs last disabled at (3432): [] sock_orphan include/net/sock.h:1869 [inline] softirqs last disabled at (3432): [] sk_common_release+0xca/0x390 net/core/sock.c:3285 ---[ end trace e50027bf9746ffd6 ]--- ====================================================== ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 33 06 xor (%rsi),%eax 2: 00 00 add %al,(%rax) 4: 8b 85 28 01 00 00 mov 0x128(%rbp),%eax a: 65 ff 0d e2 8e d4 7e decl %gs:0x7ed48ee2(%rip) # 0x7ed48ef3 11: a8 02 test $0x2,%al 13: 0f 84 77 01 00 00 je 0x190 19: 48 83 7c 24 08 00 cmpq $0x0,0x8(%rsp) 1f: 0f 85 d0 00 00 00 jne 0xf5 25: ff 34 24 pushq (%rsp) 28: 9d popfq * 29: 48 83 c4 28 add $0x28,%rsp <-- trapping instruction 2d: 5b pop %rbx 2e: 5d pop %rbp 2f: 41 5c pop %r12 31: 41 5d pop %r13 33: 41 5e pop %r14 35: 41 5f pop %r15 37: c3 retq 38: 4c 89 c7 mov %r8,%rdi 3b: 4c rex.WR 3c: 89 .byte 0x89 3d: 44 rex.R 3e: 24 .byte 0x24