Unable to handle kernel paging request at virtual address dfff8000000000bd 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 [dfff8000000000bd] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 153 Comm: kworker/u4:3 Not tainted 5.15.175-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 Workqueue: writeback wb_workfn (flush-7:4) pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : bio_associate_blkg_from_css+0xfc/0x870 block/blk-cgroup.c:1867 lr : bio_associate_blkg_from_css+0xd8/0x870 block/blk-cgroup.c:1864 sp : ffff80001dc87020 x29: ffff80001dc87060 x28: dfff800000000000 x27: 1fffe0001840ee72 x26: 1fffe0001840ee79 x25: 0000000000000000 x24: ffff0000c20773c8 x23: ffff80001b98fb90 x22: ffff800014d6a0e0 x21: 00000000000005e8 x20: ffff0000c2077388 x19: 1fffe0001840ee71 x18: ffff80001dc86e60 x17: 0000000000000000 x16: ffff8000082eae24 x15: ffff800008a4b034 x14: 1ffff0000296e06c x13: dfff800000000000 x12: 000000003a969da9 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000c5d71b40 x8 : 00000000000000bd x7 : ffff80000a9191d0 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff80001b98fa80 x0 : ffff0000c2077380 Call trace: bio_associate_blkg_from_css+0xfc/0x870 block/blk-cgroup.c:1867 bio_associate_blkg+0x238/0x360 block/blk-cgroup.c:1893 lbmStartIO+0x1b0/0x430 fs/jfs/jfs_logmgr.c:2130 lbmWrite+0x320/0x404 fs/jfs/jfs_logmgr.c:2079 jfs_flush_journal+0x434/0xd94 fs/jfs/jfs_logmgr.c:1556 jfs_write_inode+0x110/0x200 fs/jfs/inode.c:128 write_inode fs/fs-writeback.c:1495 [inline] __writeback_single_inode+0x584/0x13a4 fs/fs-writeback.c:1705 writeback_sb_inodes+0x94c/0x1654 fs/fs-writeback.c:1930 wb_writeback+0x3fc/0xfc8 fs/fs-writeback.c:2104 wb_do_writeback fs/fs-writeback.c:2247 [inline] wb_workfn+0x3a4/0x1070 fs/fs-writeback.c:2288 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 Code: 977ef5d8 f9400288 9117a115 d343fea8 (387c6908) ---[ end trace f99a9959f5cd4721 ]--- ---------------- Code disassembly (best guess): 0: 977ef5d8 bl 0xfffffffffdfbd760 4: f9400288 ldr x8, [x20] 8: 9117a115 add x21, x8, #0x5e8 c: d343fea8 lsr x8, x21, #3 * 10: 387c6908 ldrb w8, [x8, x28] <-- trapping instruction