8<--- cut here --- Unable to handle kernel paging request at virtual address 5bd3b000 [5bd3b000] *pgd=852d2003, *pmd=00000000 Internal error: Oops: 206 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 11486 Comm: syz-executor.0 Not tainted 6.1.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __queue_work+0xa0/0x74c kernel/workqueue.c:1459 LR is at 0x82c00000 pc : [<80260410>] lr : [<82c00000>] psr: 60000193 sp : df805e30 ip : 82c00024 fp : df805e74 r10: 8280e800 r9 : 5bd3b000 r8 : 82446498 r7 : 8220c940 r6 : 00000008 r5 : 83f3b200 r4 : 85a4b85c r3 : 00000000 r2 : 00000000 r1 : 00000004 r0 : 8280e800 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 849357c0 DAC: 00000000 Register r0 information: slab kmalloc-512 start 8280e800 pointer offset 0 size 512 Register r1 information: non-paged memory Register r2 information: NULL pointer Register r3 information: NULL pointer Register r4 information: slab kmalloc-2k start 85a4b800 pointer offset 92 size 2048 Register r5 information: slab kmalloc-512 start 83f3b200 pointer offset 0 size 512 Register r6 information: non-paged memory Register r7 information: non-slab/vmalloc memory Register r8 information: non-slab/vmalloc memory Register r9 information: non-paged memory Register r10 information: slab kmalloc-512 start 8280e800 pointer offset 0 size 512 Register r11 information: 2-page vmalloc region starting at 0xdf804000 allocated at start_kernel+0x588/0x78c init/main.c:1041 Register r12 information: slab radix_tree_node start 82c00000 pointer offset 36 Process syz-executor.0 (pid: 11486, stack limit = 0xec4c0000) Stack: (0xdf805e30 to 0xdf806000) 5e20: 80279278 802745b4 820a235c 84082280 5e40: 0000000b 00000001 80000113 85a4b85c 00000008 83f3b200 20000113 00000100 5e60: 0005e370 ddddd900 df805e94 df805e78 80260b0c 8026037c 85a4b830 816def8c 5e80: 84082280 816def8c df805ea4 df805e98 816defb4 80260ac8 df805edc df805ea8 5ea0: 802e4f18 816def98 000003c8 ddddd900 802e407c dc8eaf1f 85a4b830 816def8c 5ec0: df805f00 823d9d10 0005e370 84082280 df805f4c df805ee0 802e5454 802e4ef4 5ee0: 84082280 82204d40 8220c5d8 8220c498 00000002 00000000 76bfe6d0 850abd08 5f00: 00000000 df805f10 8029b138 802fab28 df805f4c df805f20 80293fc8 dc8eaf1f 5f20: 82204084 82204084 00000002 00000001 ec4c1fb0 00000002 00000100 84082280 5f40: df805fbc df805f50 8020133c 802e512c 8176e334 8176e220 00400040 82204d40 5f60: 0005e371 81eba81c 820a2344 0000000a 820aaa00 823d843a 823d94a0 8220c5d8 5f80: 8220c498 81ea8ef0 820a23d0 82204080 8176e354 820aaa00 81eba81c 81eba804 5fa0: ec4c1fb0 00000000 76bfe6d0 7ecfa544 df805fd4 df805fc0 80249f48 802011dc 5fc0: 820aa9dc 81eba81c df805ffc df805fd8 8176d898 80249eb8 000165f4 20000010 5fe0: ffffffff 84082280 820a2044 76bfe6d0 ec4c1fac df806000 81723888 8176d828 Backtrace: frame pointer underflow [<80260370>] (__queue_work) from [<80260b0c>] (queue_work_on+0x50/0x5c kernel/workqueue.c:1545) r10:ddddd900 r9:0005e370 r8:00000100 r7:20000113 r6:83f3b200 r5:00000008 r4:85a4b85c [<80260abc>] (queue_work_on) from [<816defb4>] (queue_work include/linux/workqueue.h:503 [inline]) [<80260abc>] (queue_work_on) from [<816defb4>] (nci_cmd_timer+0x28/0x2c net/nfc/nci/core.c:615) r7:816def8c r6:84082280 r5:816def8c r4:85a4b830 [<816def8c>] (nci_cmd_timer) from [<802e4f18>] (call_timer_fn+0x30/0x238 kernel/time/timer.c:1474) [<802e4ee8>] (call_timer_fn) from [<802e5454>] (expire_timers kernel/time/timer.c:1519 [inline]) [<802e4ee8>] (call_timer_fn) from [<802e5454>] (__run_timers kernel/time/timer.c:1790 [inline]) [<802e4ee8>] (call_timer_fn) from [<802e5454>] (run_timer_softirq+0x334/0x470 kernel/time/timer.c:1803) r9:84082280 r8:0005e370 r7:823d9d10 r6:df805f00 r5:816def8c r4:85a4b830 [<802e5120>] (run_timer_softirq) from [<8020133c>] (__do_softirq+0x16c/0x498 kernel/softirq.c:571) r10:84082280 r9:00000100 r8:00000002 r7:ec4c1fb0 r6:00000001 r5:00000002 r4:82204084 [<802011d0>] (__do_softirq) from [<80249f48>] (invoke_softirq kernel/softirq.c:445 [inline]) [<802011d0>] (__do_softirq) from [<80249f48>] (__irq_exit_rcu kernel/softirq.c:650 [inline]) [<802011d0>] (__do_softirq) from [<80249f48>] (__irq_exit_rcu kernel/softirq.c:640 [inline]) [<802011d0>] (__do_softirq) from [<80249f48>] (irq_exit+0x9c/0xe8 kernel/softirq.c:674) r10:7ecfa544 r9:76bfe6d0 r8:00000000 r7:ec4c1fb0 r6:81eba804 r5:81eba81c r4:820aaa00 [<80249eac>] (irq_exit) from [<8176d898>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:240) r5:81eba81c r4:820aa9dc [<8176d81c>] (generic_handle_arch_irq) from [<81723888>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40) r9:76bfe6d0 r8:820a2044 r7:84082280 r6:ffffffff r5:20000010 r4:000165f4 [<8172386c>] (call_with_stack) from [<80200e74>] (__irq_usr+0x74/0x80 arch/arm/kernel/entry-armv.S:436) Exception stack(0xec4c1fb0 to 0xec4c1ff8) 1fa0: ffffffff 00000004 000001b8 00000000 1fc0: 00000000 007fe15f 00000000 00000000 7ecfa3d2 76bfe6d0 7ecfa544 76bfe20c 1fe0: 20000110 20000110 000165f4 000165f4 20000010 ffffffff Code: 0a00003b e59f06a8 eb532f1b e1a0a000 (e5990000) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 0a00003b beq 0xf4 4: e59f06a8 ldr r0, [pc, #1704] ; 0x6b4 8: eb532f1b bl 0x14cbc7c c: e1a0a000 mov sl, r0 * 10: e5990000 ldr r0, [r9] <-- trapping instruction