------------[ cut here ]------------ WARNING: CPU: 1 PID: 23977 at fs/fs-writeback.c:1678 writeback_single_inode+0x374/0x388 fs/fs-writeback.c:1678 Modules linked in: CPU: 1 PID: 23977 Comm: syz-executor.3 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : writeback_single_inode+0x374/0x388 fs/fs-writeback.c:1678 lr : writeback_single_inode+0x374/0x388 fs/fs-writeback.c:1678 sp : ffff80001287b9c0 x29: ffff80001287ba10 x28: 0000000000000000 x27: 0000000000000a00 x26: 0000000000000010 x25: 0000000000000000 x24: 0000000000000001 x23: 0000000000001000 x22: ffff80001287ba60 x21: 0000000000000000 x20: ffff00011556398f x19: ffff000115563a18 x18: 000000000000037c x17: ffff8001f1d7d000 x16: ffff80000db49158 x15: ffff000122753500 x14: 0000000000000138 x13: 00000000ffffffff x12: ffff000122753500 x11: ff80800008617c80 x10: 0000000000000000 x9 : ffff800008617c80 x8 : ffff000122753500 x7 : ffff800008617950 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: writeback_single_inode+0x374/0x388 fs/fs-writeback.c:1678 write_inode_now+0xb0/0xdc fs/fs-writeback.c:2723 iput_final fs/inode.c:1735 [inline] iput+0x1e4/0x324 fs/inode.c:1774 ntfs_fill_super+0x1254/0x14a4 fs/ntfs3/super.c:1190 get_tree_bdev+0x1e8/0x2a0 fs/super.c:1323 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1358 vfs_get_tree+0x40/0x140 fs/super.c:1530 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x914 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 10688 hardirqs last enabled at (10687): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (10687): [] finish_lock_switch+0x94/0xe8 kernel/sched/core.c:4942 hardirqs last disabled at (10688): [] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:404 softirqs last enabled at (9782): [] _stext+0x2e4/0x37c softirqs last disabled at (9681): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- Unable to handle kernel paging request at virtual address 00000115563bb947 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000014416b000 [00000115563bb947] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 23977 Comm: syz-executor.3 Tainted: G W 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : xa_marked include/linux/xarray.h:420 [inline] pc : mapping_tagged include/linux/fs.h:461 [inline] pc : writeback_single_inode+0x228/0x388 fs/fs-writeback.c:1703 lr : writeback_single_inode+0x218/0x388 fs/fs-writeback.c:1702 sp : ffff80001287b9c0 x29: ffff80001287ba10 x28: 0000000000000000 x27: 0000000000000a00 x26: 0000000000000010 x25: 0000000000001000 x24: 0000000000000001 x23: 0000000000000001 x22: ffff80001287ba60 x21: ffff000115563a67 x20: ffff00011556398f x19: ffff000115563a18 x18: 000000000000037c x17: ffff8001f1d7d000 x16: ffff80000db49158 x15: ffff000122753500 x14: 0000000000000138 x13: 00000000ffffffff x12: ffff000122753500 x11: ff80800008617b24 x10: 0000000000000000 x9 : ffff000122753500 x8 : ff000115563bb8ff x7 : ffff800008617950 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: xa_marked include/linux/xarray.h:420 [inline] mapping_tagged include/linux/fs.h:461 [inline] writeback_single_inode+0x228/0x388 fs/fs-writeback.c:1703 write_inode_now+0xb0/0xdc fs/fs-writeback.c:2723 iput_final fs/inode.c:1735 [inline] iput+0x1e4/0x324 fs/inode.c:1774 ntfs_fill_super+0x1254/0x14a4 fs/ntfs3/super.c:1190 get_tree_bdev+0x1e8/0x2a0 fs/super.c:1323 ntfs_fs_get_tree+0x28/0x38 fs/ntfs3/super.c:1358 vfs_get_tree+0x40/0x140 fs/super.c:1530 do_new_mount+0x1dc/0x4e4 fs/namespace.c:3040 path_mount+0x358/0x914 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x2c4/0x3c4 fs/namespace.c:3568 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Code: 710006ff 54000281 f9401a88 2a1f03e0 (b9404917) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 710006ff cmp w23, #0x1 4: 54000281 b.ne 0x54 // b.any 8: f9401a88 ldr x8, [x20, #48] c: 2a1f03e0 mov w0, wzr * 10: b9404917 ldr w23, [x8, #72] <-- trapping instruction