loop0: rw=0, sector=17669878, nr_sectors = 2 limit=128 Buffer I/O error on dev loop0, logical block 8834939, async page read ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4222 at fs/inode.c:389 inc_nlink+0x128/0x154 fs/inode.c:389 Modules linked in: CPU: 0 PID: 4222 Comm: syz-executor246 Not tainted 6.1.86-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : inc_nlink+0x128/0x154 fs/inode.c:389 lr : inc_nlink+0x128/0x154 fs/inode.c:389 sp : ffff80001ddc7b70 x29: ffff80001ddc7b70 x28: dfff800000000000 x27: 0000000000000000 x26: 1fffe0001b37c815 x25: ffff800012532208 x24: 00000000000001c0 x23: 1fffe0001c613010 x22: dfff800000000000 x21: 0000000000000000 x20: ffff0000e3098038 x19: ffff0000e3098080 x18: ffff80001ddc6c80 x17: 00000000000001c0 x16: ffff800012155cc4 x15: 0000000000000000 x14: 00000000ffff8000 x13: 000000009598c0c9 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800008aab938 x8 : ffff0000d9be3780 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000001 x3 : 00000000000001c0 x2 : ffff0000cb80f780 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inc_nlink+0x128/0x154 fs/inode.c:389 inode_inc_link_count include/linux/fs.h:2571 [inline] sysv_mkdir+0x2c/0x138 fs/sysv/namei.c:119 vfs_mkdir+0x334/0x4e4 fs/namei.c:4108 do_mkdirat+0x220/0x510 fs/namei.c:4133 __do_sys_mkdirat fs/namei.c:4148 [inline] __se_sys_mkdirat fs/namei.c:4146 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4146 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 11940676 hardirqs last enabled at (11940675): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (11940676): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (11940418): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (11940418): [] __do_softirq+0xc1c/0xe38 kernel/softirq.c:600 softirqs last disabled at (11940409): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ end trace 0000000000000000 ]--- unable to read i-node block syz-executor246: attempt to access beyond end of device loop0: rw=0, sector=6491536, nr_sectors = 2 limit=128 Buffer I/O error on dev loop0, logical block 3245768, async page read syz-executor246: attempt to access beyond end of device loop0: rw=0, sector=17666806, nr_sectors = 2 limit=128 Buffer I/O error on dev loop0, logical block 8833403, async page read syz-executor246: attempt to access beyond end of device loop0: rw=0, sector=26539618, nr_sectors = 2 limit=128 Buffer I/O error on dev loop0, logical block 13269809, async page read syz-executor246: attempt to access beyond end of device loop0: rw=0, sector=16147212, nr_sectors = 2 limit=128 Buffer I/O error on dev loop0, logical block 8073606, async page read sysv_free_block: flc_count > flc_size sysv_free_inode: unable to read inode block on device loop0