================================================================== BUG: KASAN: wild-memory-access in io_wq_worker_running+0x3e/0xda fs/io-wq.c:684 Read of size 4 at addr 4d019002494080eb by task kworker/u4:4/2069 CPU: 0 PID: 2069 Comm: kworker/u4:4 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 Hardware name: riscv-virtio,qemu (DT) Workqueue: 0x0 (events_unbound) Call Trace: [] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:113 [] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:119 [] __dump_stack lib/dump_stack.c:88 [inline] [] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:106 [] __kasan_report mm/kasan/report.c:446 [inline] [] kasan_report+0x1de/0x1e0 mm/kasan/report.c:459 [] check_region_inline mm/kasan/generic.c:183 [inline] [] __asan_load4+0x6e/0x96 mm/kasan/generic.c:255 [] io_wq_worker_running+0x3e/0xda fs/io-wq.c:684 [] sched_update_worker kernel/sched/core.c:6358 [inline] [] schedule+0x100/0x14c kernel/sched/core.c:6372 [] worker_thread+0x478/0x8fa kernel/workqueue.c:2475 [] kthread+0x19e/0x1fa kernel/kthread.c:377 ================================================================== Unable to handle kernel paging request at virtual address 4d019002494080eb Oops [#1] Modules linked in: CPU: 1 PID: 2069 Comm: kworker/u4:4 Tainted: G B 5.17.0-rc1-syzkaller-00002-g0966d385830d #0 Hardware name: riscv-virtio,qemu (DT) Workqueue: 0x0 (events_unbound) epc : io_wq_worker_running+0x3e/0xda fs/io-wq.c:684 ra : io_wq_worker_running+0x3e/0xda fs/io-wq.c:684 epc : ffffffff805d049e ra : ffffffff805d049e sp : ffffaf800bb37d80 gp : ffffffff85863ac0 tp : ffffaf800bf7e100 t0 : 00000000000001f8 t1 : fffff5ef0181524a t2 : 0000000000000008 s0 : ffffaf800bb37db0 s1 : 4d019002494080e7 a0 : 0000000000000001 a1 : 0000000000000007 a2 : 1ffff5f0017efc20 a3 : ffffffff831a6b2e a4 : 0000000000000000 a5 : ffffaf800bf7f100 a6 : 0000000000f00000 a7 : ffffaf800c0a9253 s2 : ffffaf800bf7e100 s3 : ffffaf800bf7e13c s4 : ffffaf800bf7f100 s5 : ffffaf8007229860 s6 : ffffffff84a0c540 s7 : ffffaf8007229858 s8 : ffffaf8007229850 s9 : ffffffff84c3efc0 s10: ffffaf8009eaaa40 s11: 0000000100012ed1 t3 : 00007fffb787228c t4 : fffff5ef0181524a t5 : fffff5ef0181524b t6 : 762d766373000000 status: 0000000000000120 badaddr: 4d019002494080eb cause: 000000000000000d [] sched_update_worker kernel/sched/core.c:6358 [inline] [] schedule+0x100/0x14c kernel/sched/core.c:6372 [] worker_thread+0x478/0x8fa kernel/workqueue.c:2475 [] kthread+0x19e/0x1fa kernel/kthread.c:377 ---[ end trace 0000000000000000 ]---