UDF-fs: error (device loop4): udf_read_inode: (ino 1345) failed !bh UDF-fs: error (device loop4): udf_read_inode: (ino 1345) failed !bh ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6822 at fs/udf/inode.c:2088 __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 Modules linked in: CPU: 1 UID: 0 PID: 6822 Comm: syz.4.42 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 : __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 lr : __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 sp : ffff80009ef671c0 x29: ffff80009ef671e0 x28: 1ffff00013dece7a x27: dfff800000000000 x26: 0000000000000000 x25: 0000000000000004 x24: ffff80009ef673d8 x23: 0000000000000010 x22: 00000000bffffe00 x21: 1ffff00013dece7b x20: ffff80009ef673d0 x19: ffff0000f47d1478 x18: 00000000ffffffff x17: ffff800093529000 x16: ffff80008052a464 x15: 0000000000000001 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000ff0100 x11: ffff0000caa20000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000caa20000 x7 : ffff800080bac4f0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 00000000bffffe00 x2 : ffff80009ef67358 x1 : 0000000000000004 x0 : 0000000000000000 Call trace: __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 (P) udf_add_aext fs/udf/inode.c:2145 [inline] udf_insert_aext fs/udf/inode.c:2324 [inline] udf_update_extents fs/udf/inode.c:1212 [inline] inode_getblk fs/udf/inode.c:926 [inline] udf_map_block+0x2958/0x3654 fs/udf/inode.c:454 __udf_get_block+0x58/0x26c fs/udf/inode.c:468 udf_get_block+0x80/0xb4 fs/udf/inode.c:492 __block_write_begin_int+0x53c/0x15e8 fs/buffer.c:2145 block_write_begin+0xa0/0x128 fs/buffer.c:2256 udf_write_begin+0x110/0x230 fs/udf/inode.c:262 generic_perform_write+0x244/0x7bc mm/filemap.c:4175 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4292 udf_file_write_iter+0x254/0x5a4 fs/udf/file.c:111 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x540/0xa3c fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __arm64_sys_pwrite64+0x170/0x208 fs/read_write.c:798 __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: 64778 hardirqs last enabled at (64777): [] lookup_bh_lru fs/buffer.c:1390 [inline] hardirqs last enabled at (64777): [] find_get_block_common+0x334/0xde8 fs/buffer.c:1404 hardirqs last disabled at (64778): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (64714): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (64712): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6822 at fs/udf/inode.c:2088 __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 Modules linked in: CPU: 0 UID: 0 PID: 6822 Comm: syz.4.42 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN 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 : __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 lr : __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 sp : ffff80009ef671c0 x29: ffff80009ef671e0 x28: 1ffff00013dece7a x27: dfff800000000000 x26: 0000000000000010 x25: 0000000000000014 x24: ffff80009ef673d8 x23: 0000000000000010 x22: 00000000bffffe00 x21: 1ffff00013dece7b x20: ffff80009ef673d0 x19: ffff0000f47d1478 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80008b01d6e0 x15: 0000000000000001 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000ff0100 x11: ffff0000caa20000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000caa20000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 00000000bffffe00 x2 : ffff80009ef67358 x1 : 0000000000000014 x0 : 0000000000000010 Call trace: __udf_add_aext+0x490/0x61c fs/udf/inode.c:2087 (P) udf_add_aext fs/udf/inode.c:2145 [inline] udf_insert_aext fs/udf/inode.c:2324 [inline] udf_update_extents fs/udf/inode.c:1212 [inline] inode_getblk fs/udf/inode.c:926 [inline] udf_map_block+0x2958/0x3654 fs/udf/inode.c:454 __udf_get_block+0x58/0x26c fs/udf/inode.c:468 udf_get_block+0x80/0xb4 fs/udf/inode.c:492 __block_write_begin_int+0x53c/0x15e8 fs/buffer.c:2145 block_write_begin+0xa0/0x128 fs/buffer.c:2256 udf_write_begin+0x110/0x230 fs/udf/inode.c:262 generic_perform_write+0x244/0x7bc mm/filemap.c:4175 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4292 udf_file_write_iter+0x254/0x5a4 fs/udf/file.c:111 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x540/0xa3c fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __arm64_sys_pwrite64+0x170/0x208 fs/read_write.c:798 __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: 65134 hardirqs last enabled at (65133): [] bh_lru_install fs/buffer.c:1353 [inline] hardirqs last enabled at (65133): [] find_get_block_common+0x970/0xde8 fs/buffer.c:1410 hardirqs last disabled at (65134): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (65074): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (65074): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (64781): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]---