option from the mount to silence this warning. ======================================================= jfs_dirty_inode called on read-only volume Is remount racy? fuse: Bad value for 'fd' Unable to handle kernel paging request at virtual address dfff800000000008 KASAN: null-ptr-deref in range [0x0000000000000040-0x0000000000000047] Mem abort info: ESR = 0x0000000096000005 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x05: level 1 translation fault Data abort info: ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [dfff800000000008] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 6756 Comm: syz-executor.4 Not tainted 6.4.0-rc4-syzkaller-g7579d8f9bf90 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : generic_test_bit include/asm-generic/bitops/generic-non-atomic.h:128 [inline] pc : txBegin+0x138/0x5e0 fs/jfs/jfs_txnmgr.c:366 lr : txBegin+0x104/0x5e0 fs/jfs/jfs_txnmgr.c:357 sp : ffff80009ca37660 x29: ffff80009ca37680 x28: dfff800000000000 x27: dfff800000000000 x26: ffff80008e461628 x25: 0000000000000040 x24: 0000000000000000 x23: ffff80008e45efa0 x22: ffff0000dd33f830 x21: 0000000000000150 x20: 0000000000000008 x19: 0000000000000000 x18: ffff80009ca37320 x17: 0000000000000000 x16: ffff8000803289fc x15: 0000000000021d6b x14: 000000003e7faa7b x13: dfff800000000000 x12: ffff700013946eb4 x11: 0000000000000001 x10: 0000000000000000 x9 : 0000000000000002 x8 : 1ffff00011c8a7c0 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff80009148a538 x4 : 0000000000000008 x3 : ffff800080328b2c x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: txBegin+0x138/0x5e0 fs/jfs/jfs_txnmgr.c:362 __jfs_xattr_set+0xc8/0x190 fs/jfs/xattr.c:915 jfs_xattr_set+0x58/0x70 fs/jfs/xattr.c:941 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:201 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:235 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:296 vfs_setxattr+0x1a8/0x344 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x208/0x29c fs/xattr.c:653 path_setxattr+0x17c/0x258 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:684 __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+0x64/0x198 arch/arm64/kernel/syscall.c:193 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Code: 9400012e aa1703e0 959482cc 350002f8 (387c6a88) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 9400012e bl 0x4b8 4: aa1703e0 mov x0, x23 8: 959482cc bl 0x6520b38 c: 350002f8 cbnz w24, 0x68 * 10: 387c6a88 ldrb w8, [x20, x28] <-- trapping instruction