Hello, syzbot found the following issue on: HEAD commit: de10553fce40 Merge tag 'x86-apic-2023-04-24' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14bdae68280000 kernel config: https://syzkaller.appspot.com/x/.config?x=975b8311f6b96bca dashboard link: https://syzkaller.appspot.com/bug?extid=d692037148a8169fc9dd compiler: arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d692037148a8169fc9dd@xxxxxxxxxxxxxxxxxxxxxxxxx 8<--- cut here --- Unable to handle kernel NULL pointer dereference at virtual address 000005fc when read [000005fc] *pgd=80000080004003, *pmd=00000000 Internal error: Oops: 206 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express Insufficient stack space to handle exception! Task stack: [0xdf85c000..0xdf85e000] IRQ stack: [0xdf804000..0xdf806000] Overflow stack: [0x828ae000..0x828af000] Internal error: kernel stack overflow: 0 [#2] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __dabt_svc+0x14/0x60 arch/arm/kernel/entry-armv.S:210 LR is at vsnprintf+0x378/0x408 lib/vsprintf.c:2862 pc : [<80200a74>] lr : [<817ad5d8>] psr: 00000193 sp : df804028 ip : df805868 fp : df805864 r10: 00000060 r9 : ffffffff r8 : 00000010 r7 : 00000020 r6 : 00000004 r5 : ffffffff r4 : df805960 r3 : ffffffff r2 : 00000040 r1 : ffffffff r0 : 8264d250 Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 80003000 DAC: 00000000 Register r0 information: 8<--- cut here --- Unable to handle kernel NULL pointer dereference at virtual address 000001ff when read [000001ff] *pgd=80000080004003, *pmd=00000000 Internal error: Oops: 206 [#3] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __find_vmap_area mm/vmalloc.c:841 [inline] PC is at find_vmap_area mm/vmalloc.c:1862 [inline] PC is at find_vm_area mm/vmalloc.c:2571 [inline] PC is at vmalloc_dump_obj+0x38/0xb4 mm/vmalloc.c:4108 LR is at __raw_spin_lock include/linux/spinlock_api_smp.h:132 [inline] LR is at _raw_spin_lock+0x18/0x58 kernel/locking/spinlock.c:154 pc : [<8046b2f0>] lr : [<817db0f4>] psr: 20000193 sp : 828aeef8 ip : 828aeee0 fp : 828aef0c r10: 828f3980 r9 : 8241c964 r8 : 8264d41c r7 : 60000193 r6 : 00000001 r5 : 8264e000 r4 : 00000207 r3 : 80216bd4 r2 : 00001d4c r1 : 00000000 r0 : 00000001 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 80003000 DAC: 00000000 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
