lmLogOpen: exit(-22) jfs_dirty_inode called on read-only volume Is remount racy? jfs_dirty_inode called on read-only volume Is remount racy? 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: 0 UID: 0 PID: 6548 Comm: syz.0.16 Not tainted 6.13.0-rc5-syzkaller-00163-gab75170520d4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : generic_test_bit include/asm-generic/bitops/generic-non-atomic.h:128 [inline] pc : txBeginAnon+0xac/0x154 fs/jfs/jfs_txnmgr.c:465 lr : spin_lock include/linux/spinlock.h:351 [inline] lr : txBeginAnon+0x78/0x154 fs/jfs/jfs_txnmgr.c:458 sp : ffff80009b437360 x29: ffff80009b437360 x28: ffff800094db0d28 x27: ffff800094db0000 x26: ffff800094db0000 x25: 0000000000000008 x24: 0000000000000150 x23: dfff800000000000 x22: 0000000000000001 x21: 0000000000000000 x20: 0000000000000040 x19: ffff80008e2146a0 x18: ffff80009b437040 x17: 000000000001baa4 x16: ffff800080447f5c x15: ffff700013686e54 x14: 1ffff00013686e54 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700013686e54 x10: 1ffff00013686e54 x9 : ad695b6223d0d700 x8 : ad695b6223d0d700 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff800090d6eec0 x4 : 0000000000000008 x3 : ffff800080448084 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000001 Call trace: txBeginAnon+0xac/0x154 (P) extAlloc+0xe8/0xdec fs/jfs/jfs_extent.c:78 jfs_get_block+0x340/0xb98 fs/jfs/inode.c:248 __block_write_begin_int+0x4c4/0x1610 fs/buffer.c:2116 block_write_begin+0xa0/0x11c fs/buffer.c:2226 jfs_write_begin+0x44/0x88 fs/jfs/inode.c:299 generic_perform_write+0x29c/0x868 mm/filemap.c:4055 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4156 generic_file_write_iter+0xb8/0x2b4 mm/filemap.c:4182 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x920/0xcf4 fs/read_write.c:679 ksys_write+0x15c/0x26c fs/read_write.c:731 __do_sys_write fs/read_write.c:742 [inline] __se_sys_write fs/read_write.c:739 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:739 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: aa1803e0 97ffff65 aa1303e0 958b2f40 (38776b28) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: aa1803e0 mov x0, x24 4: 97ffff65 bl 0xfffffffffffffd98 8: aa1303e0 mov x0, x19 c: 958b2f40 bl 0x62cbd0c * 10: 38776b28 ldrb w8, [x25, x23] <-- trapping instruction