loop1: detected capacity change from 0 to 2048 ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 10310 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 1 PID: 10310 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 1 PID: 10310 at fs/buffer.c:1229 bh_lru_install fs/buffer.c:1346 [inline] WARNING: CPU: 1 PID: 10310 at fs/buffer.c:1229 __find_get_block+0x109d/0x1150 fs/buffer.c:1400 Modules linked in: CPU: 1 UID: 0 PID: 10310 Comm: syz.1.1211 Not tainted 6.12.0-next-20241119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:__brelse fs/buffer.c:1229 [inline] RIP: 0010:brelse include/linux/buffer_head.h:324 [inline] RIP: 0010:bh_lru_install fs/buffer.c:1346 [inline] RIP: 0010:__find_get_block+0x109d/0x1150 fs/buffer.c:1400 Code: 67 3e 9a e8 a5 1d db ff e9 1b f7 ff ff e8 4b 2a 70 ff e9 87 f7 ff ff e8 41 2a 70 ff 90 48 c7 c7 e0 e0 18 8c e8 c4 c8 30 ff 90 <0f> 0b 90 90 e9 6b f7 ff ff e8 25 2a 70 ff 48 c7 c7 80 cf a8 8e 4c RSP: 0018:ffffc9000eb8f7c0 EFLAGS: 00010246 RAX: 36a5fc9c38176d00 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000cac2000 RSI: 0000000000012089 RDI: 000000000001208a RBP: ffffc9000eb8f900 R08: ffffffff81601a72 R09: fffffbfff1cfa218 R10: dffffc0000000000 R11: fffffbfff1cfa218 R12: ffff888011e01910 R13: ffff8880b87398b0 R14: ffff888033108cb0 R15: ffff88807ceeb7a0 FS: 00007f19a1f3e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3130cff8 CR3: 000000007d84a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __getblk_slow fs/buffer.c:1127 [inline] bdev_getblk+0x18d/0x550 fs/buffer.c:1431 __bread_gfp+0x86/0x400 fs/buffer.c:1485 sb_bread include/linux/buffer_head.h:346 [inline] udf_read_tagged+0xa6/0xe00 fs/udf/misc.c:199 udf_find_fileset fs/udf/super.c:867 [inline] udf_fill_super+0xbed/0x1ed0 fs/udf/super.c:2271 get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3507 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f19a117fefa Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 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:00007f19a1f3de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f19a1f3def0 RCX: 00007f19a117fefa RDX: 00000000200002c0 RSI: 0000000020000080 RDI: 00007f19a1f3deb0 RBP: 00000000200002c0 R08: 00007f19a1f3def0 R09: 0000000000004006 R10: 0000000000004006 R11: 0000000000000246 R12: 0000000020000080 R13: 00007f19a1f3deb0 R14: 0000000000000c0c R15: 0000000020002440