------------[ cut here ]------------ WARNING: CPU: 0 PID: 8043 at fs/buffer.c:1125 __getblk_slow fs/buffer.c:1125 [inline] WARNING: CPU: 0 PID: 8043 at fs/buffer.c:1125 bdev_getblk+0x530/0x5f0 fs/buffer.c:1461 Modules linked in: CPU: 0 UID: 0 PID: 8043 Comm: syz.7.135 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 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 : ffff80009c027440 x29: ffff80009c027480 x28: dfff800000000000 x27: dfff800000000000 x26: 1fffe00018ead003 x25: dfff800000000000 x24: 0000000000000200 x23: ffff0000c14a5098 x22: 0000000000108c48 x21: 0000000000000100 x20: 1fffe00018294a13 x19: 0000000000000200 x18: 00000000ffffffff x17: ffff800093524000 x16: ffff800080528464 x15: 0000000000000003 x14: 0000000000000000 x13: 0000000000000406 x12: 0000000000ff0100 x11: 0000000006a01e1c x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c65d8000 x7 : ffff800080baa5a0 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:1952 [inline] udf_load_vrs+0x5a8/0xcb0 fs/udf/super.c:2033 udf_fill_super+0x444/0x1388 fs/udf/super.c:2201 get_tree_bdev_flags+0x360/0x414 fs/super.c:1692 get_tree_bdev+0x2c/0x3c fs/super.c:1715 udf_get_tree+0x28/0x38 fs/udf/super.c:128 vfs_get_tree+0x90/0x28c fs/super.c:1815 do_new_mount+0x278/0x7f4 fs/namespace.c:3808 path_mount+0x5b4/0xde0 fs/namespace.c:4123 do_mount fs/namespace.c:4136 [inline] __do_sys_mount fs/namespace.c:4347 [inline] __se_sys_mount fs/namespace.c:4324 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4324 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c 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:744 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 312 hardirqs last enabled at (311): [] lookup_bh_lru fs/buffer.c:1390 [inline] hardirqs last enabled at (311): [] find_get_block_common+0x334/0xde8 fs/buffer.c:1404 hardirqs last disabled at (312): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (146): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (144): [] 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 nbd7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=0, location=0 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1, location=1 getblk(): block size 512 not aligned to logical block size 1024 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=512, location=512 I/O error, dev nbd7, sector 64 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 I/O error, dev nbd7, sector 512 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=256, location=256 I/O error, dev nbd7, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=0, location=0 I/O error, dev nbd7, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1, location=1 I/O error, dev nbd7, sector 1024 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=512, location=512 I/O error, dev nbd7, sector 64 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 I/O error, dev nbd7, sector 1024 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=256, location=256 I/O error, dev nbd7, sector 8589934588 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483647, location=2147483647 I/O error, dev nbd7, sector 8589933564 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483391, location=2147483391 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483646, location=2147483646 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483390, location=2147483390 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483645, location=2147483645 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483389, location=2147483389 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483497, location=2147483497 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483241, location=2147483241 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483495, location=2147483495 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=2147483239, location=2147483239 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741823, location=1073741823 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741567, location=1073741567 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741822, location=1073741822 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741566, location=1073741566 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741821, location=1073741821 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741565, location=1073741565 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741673, location=1073741673 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741417, location=1073741417 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741671, location=1073741671 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=1073741415, location=1073741415 UDF-fs: error (device nbd7): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device nbd7): udf_fill_super: No partition found (1)