Hello, syzbot found the following issue on: HEAD commit: a41a877bc12d Merge branch 'for-next/fixes' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=15eebce7080000 kernel config: https://syzkaller.appspot.com/x/.config?x=5cea15779c42821c dashboard link: https://syzkaller.appspot.com/bug?extid=8379f446e2ac4365e343 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8379f446e2ac4365e343@xxxxxxxxxxxxxxxxxxxxxxxxx ntfs3: loop4: ino=2, "/" ntfs_iget5 ntfs3: loop4: Mark volume as dirty due to NTFS errors Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000013af0c000 [0000000000000000] pgd=080000013af11003, p4d=080000013af11003, pud=0800000138a68003, pmd=0000000000000000 Internal error: Oops: 96000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 17646 Comm: syz-executor.4 Not tainted 6.0.0-rc2-syzkaller-16455-ga41a877bc12d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : log_replay+0x4c/0x3024 fs/ntfs3/fslog.c:3774 lr : log_replay+0x3c/0x3024 fs/ntfs3/fslog.c:3736 sp : ffff80002180b970 x29: ffff80002180ba80 x28: ffff0000f8a8e000 x27: ffff0000dac28000 x26: 0000000000000018 x25: 0000000000000024 x24: ffff80002180baf4 x23: 0000000000000030 x22: ffff00010acaff40 x21: ffff0000f8a8c000 x20: 0000000000000000 x19: ffff0000f8a8e000 x18: 00000000000000c0 x17: ffff80000dd7a698 x16: ffff80000dbb8658 x15: ffff0000f666cf80 x14: 0000000000000120 x13: 00000000ffffffff x12: ffff0000f666cf80 x11: ff80800008bf6e60 x10: 0000000000000000 x9 : ffff800008bf6e60 x8 : ffff0000f666cf80 x7 : ffff8000085f0604 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000001 x1 : ffff80002180baf4 x0 : ffff00010acaff40 Call trace: log_replay+0x4c/0x3024 fs/ntfs3/fslog.c:3762 ntfs_loadlog_and_replay+0x114/0x1ec fs/ntfs3/fsntfs.c:299 ntfs_fill_super+0xc10/0x14a4 fs/ntfs/super.c:2904 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+0x2f8/0x408 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+0x48/0x154 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:624 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:642 el0t_64_sync+0x18c/0x190 Code: f9400ed4 a93b7fbf f90047ff b942a2d7 (f9400288) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f9400ed4 ldr x20, [x22, #24] 4: a93b7fbf stp xzr, xzr, [x29, #-80] 8: f90047ff str xzr, [sp, #136] c: b942a2d7 ldr w23, [x22, #672] * 10: f9400288 ldr x8, [x20] <-- trapping instruction --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
