loop0: detected capacity change from 0 to 64 overlayfs: upper fs needs to support d_type. overlayfs: upper fs does not support RENAME_WHITEOUT. overlayfs: failed to set xattr on upper overlayfs: ...falling back to redirect_dir=nofollow. overlayfs: ...falling back to index=off. overlayfs: ...falling back to uuid=null. syz.0.0: attempt to access beyond end of device loop0: rw=2049, sector=268435468, nr_sectors = 2 limit=64 Buffer I/O error on dev loop0, logical block 2, lost async page write Buffer I/O error on dev loop0, logical block 4, lost async page write evm: overlay not supported ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5326 at fs/buffer.c:1189 mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1189 Modules linked in: CPU: 0 UID: 0 PID: 5326 Comm: syz.0.0 Not tainted 6.16.0-rc3-syzkaller-00042-g78f4e737a53e #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:mark_buffer_dirty+0x2a9/0x410 fs/buffer.c:1189 Code: 4c 89 f7 e8 c9 b9 dd ff 49 8b 3e be 20 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 94 33 fc ff e8 df 36 7a ff eb 8c e8 d8 36 7a ff 90 <0f> 0b 90 e9 95 fd ff ff e8 ca 36 7a ff 90 0f 0b 90 e9 bf fd ff ff RSP: 0018:ffffc9000d3f7360 EFLAGS: 00010283 RAX: ffffffff82461648 RBX: ffff88803205dd98 RCX: 0000000000100000 RDX: ffffc9000e312000 RSI: 0000000000001aeb RDI: 0000000000001aec RBP: ffff88803205dd01 R08: ffff88803205dd9f R09: 1ffff1100640bbb3 R10: dffffc0000000000 R11: ffffed100640bbb4 R12: 000000000000000b R13: ffff88803205ddc0 R14: ffff88804cb83800 R15: 1ffff1100640bbb8 FS: 00007f76684dc6c0(0000) GS:ffff88808d251000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f765c3ff000 CR3: 000000003ea0b000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: minix_new_inode+0x2c6/0x450 fs/minix/bitmap.c:246 minix_tmpfile+0x1f/0xc0 fs/minix/namei.c:56 vfs_tmpfile+0x3a0/0x860 fs/namei.c:3947 kernel_tmpfile_open+0x4d/0x90 fs/namei.c:3991 ovl_do_tmpfile fs/overlayfs/overlayfs.h:394 [inline] ovl_copy_up_tmpfile fs/overlayfs/copy_up.c:877 [inline] ovl_do_copy_up fs/overlayfs/copy_up.c:999 [inline] ovl_copy_up_one fs/overlayfs/copy_up.c:1202 [inline] ovl_copy_up_flags+0x13fa/0x3010 fs/overlayfs/copy_up.c:1257 ovl_setattr+0x11a/0x550 fs/overlayfs/inode.c:42 notify_change+0xb33/0xe40 fs/attr.c:552 do_truncate+0x1a4/0x220 fs/open.c:68 vfs_truncate+0x493/0x520 fs/open.c:118 do_sys_truncate+0xdb/0x190 fs/open.c:141 __do_sys_truncate fs/open.c:153 [inline] __se_sys_truncate fs/open.c:151 [inline] __x64_sys_truncate+0x5b/0x70 fs/open.c:151 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f766758e929 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:00007f76684dc038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007f76677b5fa0 RCX: 00007f766758e929 RDX: 0000000000000000 RSI: 00000000000009fa RDI: 0000200000000000 RBP: 00007f7667610b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f76677b5fa0 R15: 00007ffc704f79b8