program: syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000240)='./bus\x00', 0x8008, &(0x7f0000000100)=ANY=[@ANYRES64=0x0], 0xf, 0xab, &(0x7f0000010140)="$eJzs1zGKwkAYBeB/s7CbdptFsLBO4x08ilhqI1aK4A3Ei3gVj5DewiKtiCOYiIidRQT5vmLgzWPgtbM7brubIiKtIlLRme7T3Wy+GA8n9Rl8pCwifiMij4jeX50Pg7r7avqyWo7K6vv58c+69b0AAMDrsug/5nNqLk7NL/Aa/m993vI+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgHe7BAAA//+dfyiL") r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000040)='memory.events\x00', 0x275a, 0x0) r1 = syz_open_procfs$pagemap(0x0, &(0x7f0000000000)) ioctl$PAGEMAP_SCAN(r1, 0xc0606610, &(0x7f0000000040)={0x60, 0x2, &(0x7f0000ffd000/0x1000)=nil, &(0x7f0000ffd000/0x2000)=nil, 0x6, 0x0, 0x0, 0xb8, 0x2d, 0x5823e6991ee96ee2, 0x12, 0x69}) ioctl$sock_SIOCDELRT(r0, 0x890c, &(0x7f0000000180)={0x0, @generic={0x1e, "d27a6b969add93d30882f475e635"}, @ax25={0x3, @bcast, 0x6}, @vsock={0x28, 0x0, 0x2711, @local}, 0x40, 0x0, 0x0, 0x0, 0x4, 0x0, 0xfb, 0xfb, 0x1}) r2 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x441, 0x108) syz_mount_image$vfat(&(0x7f0000000100), &(0x7f00000002c0)='./bus\x00', 0x1800840, &(0x7f0000000180)=ANY=[@ANYBLOB="6e6f6e756d7461696c3d302c756e695f786c6174653d302c73686f72746e616d653d6c6f7765722c73686f72746e616d653d6c6f7765722c73686f72746e616d653d77696e39352c6e6f6e756d7461696c3d302c757466383d302c756e695f786c6174653d312c696f636861727365743d69736f383835392d31342c636f6465706167653d3935302c696f636861727365743d6d616363656e746575726f2c757466383d302c73686f72746e616d653d6c6f7765722c00eb35cd69a309a1cd59f889d47f6ece19f2f93c7c42fee6d42a74a07aedee8d38362cec0a8a369a2bd5754fa3f8c0626979e68e9ae4cf36"], 0x1, 0x367, &(0x7f0000000840)="$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") r3 = creat(&(0x7f0000000200)='./file0\x00', 0x3) bpf$MAP_CREATE(0x0, &(0x7f0000000080)=ANY=[@ANYBLOB="010000000a00000005"], 0x48) write$binfmt_elf32(r3, &(0x7f0000000040)=ANY=[@ANYBLOB="7f454c46000000000000000000000000030006000000000000000000380000000000000000191bda0000200001000000000280000000000003"], 0x69) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20000008b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4) syz_clone(0x0, 0x0, 0xfffffffffffffead, 0x0, 0x0, 0x0) close(r3) r4 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r4, 0x0, 0x0) execve(&(0x7f0000000180)='./file0\x00', 0x0, 0x0) ioctl$DRM_IOCTL_MODE_GETRESOURCES(r0, 0xc04064a0, &(0x7f0000000380)={&(0x7f0000000200)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f00000002c0)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], &(0x7f0000000300)=[0x0, 0x0], &(0x7f0000000340)=[0x0, 0x0], 0xa, 0x8, 0x2, 0x2}) ioctl$DRM_IOCTL_MODE_SETGAMMA(r0, 0xc02064a5, &(0x7f0000000480)={r5, 0x6, &(0x7f00000003c0)=[0xffff, 0xa63, 0x7fff, 0x25d7, 0x0, 0x2], &(0x7f0000000400)=[0x6, 0x1, 0x3, 0x9, 0x6, 0x1, 0x4], &(0x7f0000000440)=[0xffff]}) write$RDMA_USER_CM_CMD_CREATE_ID(r2, &(0x7f0000000b80)={0x0, 0x18, 0xfa00, {0x0, 0x0, 0x13f, 0x2}}, 0x20) write$RDMA_USER_CM_CMD_NOTIFY(r0, &(0x7f0000000bc0)={0xf, 0x8, 0xfa00, {0xffffffffffffffff, 0x11}}, 0x10) r6 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x20442, 0x36) r7 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r7, 0x1, &(0x7f0000000000)='source', &(0x7f0000000100)='::,:\x00', 0x0) r8 = socket$inet_icmp_raw(0x2, 0x3, 0x1) setsockopt$IP_VS_SO_SET_ADD(r8, 0x0, 0x482, &(0x7f0000000000)={0x11, @broadcast, 0x0, 0x0, 'fo\x00'}, 0x2c) getdents64(r2, &(0x7f00000000c0)=""/63, 0x3f) r9 = socket$inet_icmp(0x2, 0x2, 0x1) setsockopt$IP_VS_SO_SET_ZERO(r9, 0x0, 0x48f, &(0x7f0000000040)={0x0, @rand_addr, 0x0, 0x0, 'wrr\x00'}, 0x2c) pwrite64(r6, &(0x7f0000000140)='2', 0xfdef, 0xe7c) [ 127.281719][ T4682] Bluetooth: hci0: command tx timeout [ 127.339375][ T5345] loop0: detected capacity change from 0 to 64 [ 127.456197][ T5343] IPVS: starting estimator thread 0... [ 127.460703][ T5345] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI [ 127.466015][ T5345] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 127.469658][ T5345] CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 127.474084][ T5345] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 127.478969][ T5345] RIP: 0010:bfs_get_block+0x589/0xae0 [ 127.481332][ T5345] Code: f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 e0 86 8b ff 49 8b 5d 20 4d 8d 66 28 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 48 8b 6c 24 18 74 08 4c 89 e7 e8 b4 86 8b ff 4c 89 ef [ 127.489009][ T5345] RSP: 0018:ffffc9000c637638 EFLAGS: 00010206 [ 127.491565][ T5345] RAX: 0000000000000005 RBX: 0000000000000200 RCX: dffffc0000000000 [ 127.495001][ T5345] RDX: ffffc900211d2000 RSI: 00000000000005b4 RDI: ffff888011d152d8 [ 127.498566][ T5345] RBP: ffff888031c64e70 R08: ffffea00008c1bb7 R09: 1ffffd4000118376 [ 127.501777][ T5345] R10: dffffc0000000000 R11: fffff94000118377 R12: 0000000000000028 [ 127.505084][ T5345] R13: ffff888011d152b8 R14: 0000000000000000 R15: 000000000000002b [ 127.508558][ T5345] FS: 00007f4ec13ac6c0(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000 [ 127.515208][ T5345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 127.517988][ T5345] CR2: 00007f4ec06aee10 CR3: 0000000011baa000 CR4: 0000000000352ef0 [ 127.521213][ T5345] Call Trace: [ 127.522967][ T5345] [ 127.524612][ T5345] __block_write_begin_int+0x6b5/0x1900 [ 127.527601][ T5345] ? __pfx_bfs_get_block+0x10/0x10 [ 127.530137][ T5345] ? __pfx___block_write_begin_int+0x10/0x10 [ 127.532774][ T5345] ? __pfx_bfs_get_block+0x10/0x10 [ 127.534947][ T5345] block_write_begin+0x8d/0x120 [ 127.536988][ T5345] ? bfs_write_begin+0x1e/0xd0 [ 127.538996][ T5345] bfs_write_begin+0x35/0xd0 [ 127.540800][ T5345] generic_perform_write+0x2c5/0x900 [ 127.542894][ T5345] ? __pfx_generic_perform_write+0x10/0x10 [ 127.545281][ T5345] ? file_update_time_flags+0x2cb/0x4e0 [ 127.547854][ T5345] ? __generic_file_write_iter+0xf9/0x230 [ 127.550366][ T5345] ? generic_file_write_iter+0x103/0x550 [ 127.552894][ T5345] generic_file_write_iter+0x117/0x550 [ 127.555237][ T5345] ? __pfx_generic_file_write_iter+0x10/0x10 [ 127.557830][ T5345] ? __lock_acquire+0x6b6/0x2cf0 [ 127.559989][ T5345] ? __pfx_aa_file_perm+0x10/0x10 [ 127.562103][ T5345] ? __pfx_futex_wake_mark+0x10/0x10 [ 127.564434][ T5345] ? futex_hash+0x40/0x2d0 [ 127.566432][ T5345] ? vfs_write+0x211/0xb30 [ 127.568440][ T5345] ? vfs_write+0x211/0xb30 [ 127.570412][ T5345] vfs_write+0x5c9/0xb30 [ 127.572316][ T5345] ? __pfx_generic_file_write_iter+0x10/0x10 [ 127.574905][ T5345] ? __pfx_vfs_write+0x10/0x10 [ 127.576885][ T5345] ? __fget_files+0x2a/0x420 [ 127.578802][ T5345] __x64_sys_pwrite64+0x193/0x220 [ 127.580872][ T5345] ? __pfx___x64_sys_pwrite64+0x10/0x10 [ 127.583072][ T5345] do_syscall_64+0xec/0xf80 [ 127.585014][ T5345] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 127.587489][ T5345] ? trace_irq_disable+0x37/0x100 [ 127.589607][ T5345] ? clear_bhb_loop+0x60/0xb0 [ 127.591697][ T5345] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 127.594137][ T5345] RIP: 0033:0x7f4ec058f7c9 [ 127.595811][ T5345] 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 [ 127.603435][ T5345] RSP: 002b:00007f4ec13ac038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 [ 127.606977][ T5345] RAX: ffffffffffffffda RBX: 00007f4ec07e5fa0 RCX: 00007f4ec058f7c9 [ 127.610300][ T5345] RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000008 [ 127.613738][ T5345] RBP: 00007f4ec0613f91 R08: 0000000000000000 R09: 0000000000000000 [ 127.616885][ T5345] R10: 0000000000000e7c R11: 0000000000000246 R12: 0000000000000000 [ 127.620383][ T5345] R13: 00007f4ec07e6038 R14: 00007f4ec07e5fa0 R15: 00007fff2a721288 [ 127.623969][ T5345] [ 127.625359][ T5345] Modules linked in: [ 127.627868][ T5345] ---[ end trace 0000000000000000 ]--- [ 127.630272][ T5345] RIP: 0010:bfs_get_block+0x589/0xae0 [ 127.632494][ T5345] Code: f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 e0 86 8b ff 49 8b 5d 20 4d 8d 66 28 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 48 8b 6c 24 18 74 08 4c 89 e7 e8 b4 86 8b ff 4c 89 ef [ 127.640348][ T5345] RSP: 0018:ffffc9000c637638 EFLAGS: 00010206 [ 127.643360][ T5345] RAX: 0000000000000005 RBX: 0000000000000200 RCX: dffffc0000000000 [ 127.647223][ T5345] RDX: ffffc900211d2000 RSI: 00000000000005b4 RDI: ffff888011d152d8 [ 127.650811][ T5345] RBP: ffff888031c64e70 R08: ffffea00008c1bb7 R09: 1ffffd4000118376 [ 127.654334][ T5345] R10: dffffc0000000000 R11: fffff94000118377 R12: 0000000000000028 [ 127.657857][ T5345] R13: ffff888011d152b8 R14: 0000000000000000 R15: 000000000000002b [ 127.661467][ T5345] FS: 00007f4ec13ac6c0(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000 [ 127.665312][ T5345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 127.668417][ T5345] CR2: 00007f4ec06aee10 CR3: 0000000011baa000 CR4: 0000000000352ef0 [ 127.671937][ T5345] Kernel panic - not syncing: Fatal exception [ 127.674935][ T5345] Kernel Offset: disabled [ 127.676890][ T5345] Rebooting in 86400 seconds..