program: syz_mount_image$vfat(&(0x7f0000000180), &(0x7f0000000080)='./file1\x00', 0x280008a, &(0x7f00000007c0)={[{@numtail}, {@shortname_win95}, {@fat=@errors_remount}, {@iocharset={'iocharset', 0x3d, 'cp855'}}, {@uni_xlateno}, {@numtail}, {@utf8no}, {@fat=@flush}, {@rodir}, {@shortname_mixed}, {@shortname_winnt}, {@shortname_win95}, {@fat=@uid}, {@uni_xlateno}, {@utf8no}, {@shortname_mixed}, {@uni_xlateno}, {@shortname_winnt}]}, 0x97, 0x2a9, &(0x7f0000000500)="$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") socket(0x10, 0x5, 0x5) mount(&(0x7f0000000540)=@filename='./file1\x00', &(0x7f0000000580)='./file1\x00', &(0x7f00000005c0)='erofs\x00', 0x200000, 0x0) [ 88.449946][ T5099] Bluetooth: hci0: command tx timeout [ 89.598749][ T5115] loop0: detected capacity change from 0 to 256 [ 89.627236][ T5115] vfat: Unknown parameter 's' [ 89.657850][ T5115] ./file1: Can't lookup blockdev [ 89.677362][ T5115] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 89.680008][ T5115] #PF: supervisor instruction fetch in kernel mode [ 89.682073][ T5115] #PF: error_code(0x0010) - not-present page [ 89.683939][ T5115] PGD 4c283067 P4D 4c283067 PUD 4c284067 PMD 0 [ 89.686273][ T5115] Oops: Oops: 0010 [#1] PREEMPT SMP KASAN NOPTI [ 89.688671][ T5115] CPU: 0 UID: 0 PID: 5115 Comm: syz.0.0 Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #0 [ 89.692555][ T5115] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 89.696530][ T5115] RIP: 0010:0x0 [ 89.697724][ T5115] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 89.700282][ T5115] RSP: 0018:ffffc9000179f9f8 EFLAGS: 00010287 [ 89.702495][ T5115] RAX: ffffffff81cb4ee0 RBX: 0000000000000000 RCX: 0000000000040000 [ 89.705395][ T5115] RDX: ffffc9000b6c9000 RSI: ffffea0001003c40 RDI: 0000000000000000 [ 89.708361][ T5115] RBP: ffffc9000179fac0 R08: ffffea0001003c47 R09: 1ffffd4000200788 [ 89.711320][ T5115] R10: dffffc0000000000 R11: 0000000000000000 R12: ffffea0001003c40 [ 89.714304][ T5115] R13: 1ffffd4000200789 R14: 0000000000000000 R15: ffffea0001003c48 [ 89.717218][ T5115] FS: 00007f192db8e6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 [ 89.720495][ T5115] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.723216][ T5115] CR2: ffffffffffffffd6 CR3: 000000003586c000 CR4: 0000000000350ef0 [ 89.726212][ T5115] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.729234][ T5115] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.732207][ T5115] Call Trace: [ 89.733490][ T5115] [ 89.734532][ T5115] ? __die_body+0x88/0xe0 [ 89.736238][ T5115] ? page_fault_oops+0x8e4/0xcc0 [ 89.738010][ T5115] ? __pfx_page_fault_oops+0x10/0x10 [ 89.740135][ T5115] ? rcu_is_watching+0x15/0xb0 [ 89.741846][ T5115] ? is_errata93+0xbe/0x260 [ 89.743402][ T5115] ? exc_page_fault+0x5ed/0x8c0 [ 89.745247][ T5115] ? asm_exc_page_fault+0x26/0x30 [ 89.747132][ T5115] ? filemap_read_folio+0x190/0x790 [ 89.749133][ T5115] filemap_read_folio+0x1a0/0x790 [ 89.750954][ T5115] ? __pfx_filemap_read_folio+0x10/0x10 [ 89.752995][ T5115] ? __filemap_get_folio+0x984/0xc10 [ 89.755025][ T5115] do_read_cache_folio+0x134/0x820 [ 89.756993][ T5115] erofs_bread+0x499/0xd40 [ 89.758704][ T5115] erofs_fc_fill_super+0x345/0x1770 [ 89.760681][ T5115] ? __pfx_erofs_fc_fill_super+0x10/0x10 [ 89.762720][ T5115] ? sget_fc+0x909/0x9c0 [ 89.764377][ T5115] ? __pfx_set_anon_super_fc+0x10/0x10 [ 89.766347][ T5115] ? __pfx_erofs_fc_fill_super+0x10/0x10 [ 89.768529][ T5115] get_tree_nodev+0xb7/0x140 [ 89.770305][ T5115] vfs_get_tree+0x90/0x2b0 [ 89.772009][ T5115] do_new_mount+0x2be/0xb40 [ 89.773773][ T5115] ? __pfx_do_new_mount+0x10/0x10 [ 89.775724][ T5115] __se_sys_mount+0x2d6/0x3c0 [ 89.777583][ T5115] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 89.779864][ T5115] ? __pfx___se_sys_mount+0x10/0x10 [ 89.781888][ T5115] ? do_syscall_64+0x100/0x230 [ 89.783755][ T5115] ? __x64_sys_mount+0x20/0xc0 [ 89.785615][ T5115] do_syscall_64+0xf3/0x230 [ 89.787418][ T5115] ? clear_bhb_loop+0x35/0x90 [ 89.789246][ T5115] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 89.791774][ T5115] RIP: 0033:0x7f192cd7def9 [ 89.793910][ T5115] 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 [ 89.800883][ T5115] RSP: 002b:00007f192db8e038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 89.803746][ T5115] RAX: ffffffffffffffda RBX: 00007f192cf35f80 RCX: 00007f192cd7def9 [ 89.806490][ T5115] RDX: 00000000200005c0 RSI: 0000000020000580 RDI: 0000000020000540 [ 89.809362][ T5115] RBP: 00007f192cdf0b76 R08: 0000000000000000 R09: 0000000000000000 [ 89.812112][ T5115] R10: 0000000000200000 R11: 0000000000000246 R12: 0000000000000000 [ 89.815102][ T5115] R13: 0000000000000000 R14: 00007f192cf35f80 R15: 00007ffd6a3cf4c8 [ 89.818175][ T5115] [ 89.819313][ T5115] Modules linked in: [ 89.820786][ T5115] CR2: 0000000000000000 [ 89.822328][ T5115] ---[ end trace 0000000000000000 ]--- [ 89.824327][ T5115] RIP: 0010:0x0 [ 89.825689][ T5115] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 89.828363][ T5115] RSP: 0018:ffffc9000179f9f8 EFLAGS: 00010287 [ 89.830599][ T5115] RAX: ffffffff81cb4ee0 RBX: 0000000000000000 RCX: 0000000000040000 [ 89.833401][ T5115] RDX: ffffc9000b6c9000 RSI: ffffea0001003c40 RDI: 0000000000000000 [ 89.836383][ T5115] RBP: ffffc9000179fac0 R08: ffffea0001003c47 R09: 1ffffd4000200788 [ 89.839254][ T5115] R10: dffffc0000000000 R11: 0000000000000000 R12: ffffea0001003c40 [ 89.841874][ T5115] R13: 1ffffd4000200789 R14: 0000000000000000 R15: ffffea0001003c48 [ 89.844565][ T5115] FS: 00007f192db8e6c0(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000 [ 89.847639][ T5115] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.849908][ T5115] CR2: ffffffffffffffd6 CR3: 000000003586c000 CR4: 0000000000350ef0 [ 89.853073][ T5115] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 89.856158][ T5115] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 89.859225][ T5115] Kernel panic - not syncing: Fatal exception [ 89.861871][ T5115] Kernel Offset: disabled [ 89.863407][ T5115] Rebooting in 86400 seconds..