------------[ cut here ]------------ WARNING: CPU: 1 PID: 9279 at fs/ext4/ext4_jbd2.c:76 ext4_journal_check_start fs/ext4/ext4_jbd2.c:76 [inline] WARNING: CPU: 1 PID: 9279 at fs/ext4/ext4_jbd2.c:76 __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:108 Modules linked in: CPU: 1 UID: 0 PID: 9279 Comm: syz.5.536 Not tainted 6.16.0-rc4-syzkaller-g25b50375179c #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_journal_check_start fs/ext4/ext4_jbd2.c:76 [inline] pc : __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:108 lr : ext4_journal_check_start fs/ext4/ext4_jbd2.c:76 [inline] lr : __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:108 sp : ffff80009c8071b0 x29: ffff80009c8071c0 x28: 1fffe000197b9cc8 x27: dfff800000000000 x26: ffff0000cbdce050 x25: ffff0000cbdce640 x24: ffff0000cbdce000 x23: 0000000000000001 x22: 0000000000000000 x21: 0000000000000000 x20: 0000000000000000 x19: 0000000070810011 x18: 00000000ffffffff x17: ffff800093340000 x16: ffff80008051e35c x15: 0000000000000002 x14: 1ffff00013900e35 x13: 0000000000000036 x12: ffff80009c8072d6 x11: 0000000000080000 x10: 00000000000048c8 x9 : ffff80009d6c9000 x8 : 00000000000048c9 x7 : 0000000000000036 x6 : 0000000000000080 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: ext4_journal_check_start fs/ext4/ext4_jbd2.c:76 [inline] (P) __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:108 (P) ext4_sample_last_mounted fs/ext4/file.c:868 [inline] ext4_file_open+0x5ac/0x84c fs/ext4/file.c:900 do_dentry_open+0xb7c/0x1544 fs/open.c:964 vfs_open+0x44/0x2d4 fs/open.c:1094 do_open fs/namei.c:3896 [inline] path_openat+0x2424/0x2c40 fs/namei.c:4055 do_filp_open+0x18c/0x36c fs/namei.c:4082 do_open_execat+0x124/0x3c4 fs/exec.c:780 open_exec+0x48/0x6c fs/exec.c:817 bm_register_write+0x230/0x12b8 fs/binfmt_misc.c:833 vfs_write+0x2a0/0x97c fs/read_write.c:684 ksys_write+0x120/0x210 fs/read_write.c:738 __do_sys_write fs/read_write.c:749 [inline] __se_sys_write fs/read_write.c:746 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:746 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 174 hardirqs last enabled at (173): [] seqcount_lockdep_reader_access+0x7c/0xf8 include/linux/seqlock.h:74 hardirqs last disabled at (174): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (134): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (134): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (121): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- binfmt_misc: register: failed to install interpreter file ./file2