loop0: detected capacity change from 0 to 256 ======================================================= WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= exfat: Deprecated parameter 'namecase' exFAT-fs (loop0): failed to load upcase table (idx : 0x00010000, chksum : 0x1cbb3694, utbl_chksum : 0xe619d30d) exFAT-fs (loop0): error, in sector 160, dentry 5 should be unused, but 0xc1 overlay: filesystem on ./bus not supported ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 0 PID: 5319 at fs/buffer.c:1229 __brelse fs/buffer.c:1229 [inline] WARNING: CPU: 0 PID: 5319 at fs/buffer.c:1229 brelse include/linux/buffer_head.h:324 [inline] WARNING: CPU: 0 PID: 5319 at fs/buffer.c:1229 bh_lru_install fs/buffer.c:1346 [inline] WARNING: CPU: 0 PID: 5319 at fs/buffer.c:1229 __find_get_block+0x109d/0x1150 fs/buffer.c:1400 Modules linked in: CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.13.0-rc5-syzkaller-00198-g9244696b34f2 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 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: 07 40 9a e8 25 58 dc ff e9 1b f7 ff ff e8 3b f4 75 ff e9 87 f7 ff ff e8 31 f4 75 ff 90 48 c7 c7 60 02 19 8c e8 f4 97 36 ff 90 <0f> 0b 90 90 e9 6b f7 ff ff e8 15 f4 75 ff 48 c7 c7 40 e2 a8 8e 4c RSP: 0018:ffffc9000d2875a0 EFLAGS: 00010246 RAX: caa837a1e1495c00 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000ec91000 RSI: 0000000000001452 RDI: 0000000000001453 RBP: ffffc9000d2876d0 R08: ffffffff81602a82 R09: fffffbfff1cfa210 R10: dffffc0000000000 R11: fffffbfff1cfa210 R12: ffff888052c853a0 R13: ffff88801fc398b0 R14: ffff888031eb2ae0 R15: ffff888031eb27a0 FS: 00007f813b11b6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000100 CR3: 0000000043322000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bdev_getblk+0x33/0x670 fs/buffer.c:1425 __getblk include/linux/buffer_head.h:380 [inline] sb_getblk include/linux/buffer_head.h:386 [inline] exfat_zeroed_cluster+0x259/0x660 fs/exfat/fatent.c:288 exfat_add_entry+0x6dd/0xaa0 fs/exfat/namei.c:503 exfat_mkdir+0x1c7/0x580 fs/exfat/namei.c:858 vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4311 do_mkdirat+0x264/0x3a0 fs/namei.c:4334 __do_sys_mkdirat fs/namei.c:4349 [inline] __se_sys_mkdirat fs/namei.c:4347 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4347 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: 0033:0x7f813a385d29 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:00007f813b11b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007f813a575fa0 RCX: 00007f813a385d29 RDX: 0000000000000000 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f813a401b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f813a575fa0 R15: 00007ffcba755cd8