Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Mem abort info: ESR = 0x0000000097c08006 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: Access size = 8 byte(s) SSE = 0, SRT = 0 SF = 1, AR = 0 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000005d597000 [0000000000000008] pgd=080000005dd64003, p4d=080000005dd64003, pud=0800000059b6f003, pmd=0000000000000000 Internal error: Oops: 0000000097c08006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 22255 Comm: syz-executor.1 Not tainted 6.7.0-syzkaller-06082-g22d29f1112c8 #0 Hardware name: linux,dummy-virt (DT) pstate: 41400009 (nZcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : _compound_head include/linux/page-flags.h:247 [inline] pc : bio_first_folio include/linux/bio.h:289 [inline] pc : __bio_release_pages+0x4c/0x26c block/bio.c:1153 lr : bio_release_pages include/linux/bio.h:508 [inline] lr : blkdev_bio_end_io+0x108/0x144 block/fops.c:157 sp : ffff800082ccba40 x29: ffff800082ccba40 x28: 0000000000000000 x27: ffff80008054ff34 x26: f0ff00000529eb00 x25: 0000000001000000 x24: 0000000000000000 x23: 0000000000028801 x22: 00000000ffffffff x21: 0000000000000000 x20: f0ff00000529eb00 x19: faff0000206c4000 x18: 0000000000000001 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000001000 x14: 0000ffffa6b4ffff x13: 0000000000000000 x12: 1e7fe00000ae40c1 x11: 0000000000000000 x10: ffff800081d80180 x9 : f3ff000005720600 x8 : 000000000000000c x7 : 0000000021000000 x6 : 0000000000000001 x5 : f3ff000005720680 x4 : 0000000000000003 x3 : 0000000000000000 x2 : f7ff000006471000 x1 : 0000000000000000 x0 : 0000000000000001 Call trace: _compound_head include/linux/page-flags.h:251 [inline] bio_first_folio include/linux/bio.h:289 [inline] __bio_release_pages+0x4c/0x26c block/bio.c:1153 bio_release_pages include/linux/bio.h:508 [inline] blkdev_bio_end_io+0x108/0x144 block/fops.c:157 bio_endio+0x154/0x168 block/bio.c:1608 __blkdev_direct_IO block/fops.c:213 [inline] blkdev_direct_IO.part.0+0x578/0x60c block/fops.c:379 blkdev_direct_IO block/fops.c:370 [inline] blkdev_direct_write block/fops.c:648 [inline] blkdev_write_iter+0x1b8/0x2c0 block/fops.c:706 call_write_iter include/linux/fs.h:2085 [inline] do_iter_readv_writev+0xc4/0x150 fs/read_write.c:741 vfs_writev+0x128/0x2a0 fs/read_write.c:971 do_pwritev+0x98/0xe0 fs/read_write.c:1072 __do_sys_pwritev2 fs/read_write.c:1131 [inline] __se_sys_pwritev2 fs/read_write.c:1122 [inline] __arm64_sys_pwritev2+0x2c/0x4c fs/read_write.c:1122 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:51 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:136 do_el0_svc+0x1c/0x28 arch/arm64/kernel/syscall.c:155 el0_svc+0x34/0xd8 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:595 Code: f9403f42 f9400041 aa0103e3 aa0103fc (f9400420) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f9403f42 ldr x2, [x26, #120] 4: f9400041 ldr x1, [x2] 8: aa0103e3 mov x3, x1 c: aa0103fc mov x28, x1 * 10: f9400420 ldr x0, [x1, #8] <-- trapping instruction