UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=256, location=256 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7146 at fs/buffer.c:1125 __getblk_slow fs/buffer.c:1125 [inline] WARNING: CPU: 0 PID: 7146 at fs/buffer.c:1125 bdev_getblk+0x530/0x5f0 fs/buffer.c:1461 Modules linked in: CPU: 0 UID: 0 PID: 7146 Comm: syz.1.78 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __getblk_slow fs/buffer.c:1125 [inline] pc : bdev_getblk+0x530/0x5f0 fs/buffer.c:1461 lr : __getblk_slow fs/buffer.c:1125 [inline] lr : bdev_getblk+0x530/0x5f0 fs/buffer.c:1461 sp : ffff8000a47773e0 x29: ffff8000a4777420 x28: dfff800000000000 x27: dfff800000000000 x26: 1fffe0001adae403 x25: dfff800000000000 x24: 0000000000000200 x23: ffff0000c1760018 x22: 0000000000108c48 x21: 0000000000000200 x20: 1fffe000182ec003 x19: 0000000000000200 x18: 1fffe000337d4a90 x17: ffff80008f5ae000 x16: ffff80008052b3c8 x15: 0000000000000003 x14: 0000000000000002 x13: 0000000000000406 x12: 0000000000ff0100 x11: 0000000000080000 x10: 000000000000b33b x9 : ffff8000a5d6e000 x8 : 000000000000b33c x7 : ffff800080bb917c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000200 x0 : 0000000000000000 Call trace: __getblk_slow fs/buffer.c:1125 [inline] (P) bdev_getblk+0x530/0x5f0 fs/buffer.c:1461 (P) __bread_gfp+0x90/0x34c fs/buffer.c:1515 sb_bread include/linux/buffer_head.h:346 [inline] udf_read_tagged+0x9c/0xaf0 fs/udf/misc.c:199 udf_check_anchor_block+0x9c/0x44c fs/udf/super.c:1912 udf_scan_anchors fs/udf/super.c:1990 [inline] udf_load_vrs+0x8a4/0xcb0 fs/udf/super.c:2033 udf_fill_super+0x444/0x1388 fs/udf/super.c:2201 get_tree_bdev_flags+0x360/0x414 fs/super.c:1698 get_tree_bdev+0x2c/0x3c fs/super.c:1721 udf_get_tree+0x28/0x38 fs/udf/super.c:128 vfs_get_tree+0x90/0x28c fs/super.c:1758 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3642 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3718 path_mount+0x5b4/0xdfc fs/namespace.c:4028 do_mount fs/namespace.c:4041 [inline] __do_sys_mount fs/namespace.c:4229 [inline] __se_sys_mount fs/namespace.c:4206 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4206 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 920 hardirqs last enabled at (919): [] lookup_bh_lru fs/buffer.c:1390 [inline] hardirqs last enabled at (919): [] find_get_block_common+0x334/0xde8 fs/buffer.c:1404 hardirqs last disabled at (920): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (656): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (654): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- getblk(): block size 512 not aligned to logical block size 1024 UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device nbd1): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device nbd1): udf_fill_super: No partition found (1)