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Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000086000004 EC = 0x21: IABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault user pgtable: 4k pages, 48-bit VAs, pgdp=0000000109e43000 [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 2603 Comm: udevd Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : 0x0 lr : rcu_do_batch+0x1a4/0x584 kernel/rcu/tree.c:2250 sp : ffff800008003e60 x29: ffff800008003e90 x28: 0000000000000004 x27: 000000000000000a x26: 0000000000000000 x25: ffff000132ccddf0 x24: ffff80000d37c000 x23: ffff80000d4a4690 x22: ffff80000c0cec40 x21: ffff0000c7903480 x20: ffff0001fefd0cc0 x19: ffff80000d2d0cc0 x18: 000000000000ba7e x17: ffff8001f1cee000 x16: ffff80000dbe6158 x15: ffff0000c7903480 x14: 0000000000000018 x13: 0000000000000001 x12: ffff0000c7903480 x11: ff808000095d5398 x10: 0000000000000000 x9 : 1fd3e11f8cfd8b00 x8 : 0000000000000000 x7 : ffff8000081f6978 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff80000cbaae40 x0 : ffff000132ccddf0 Call trace: 0x0 rcu_core+0x2bc/0x5b4 kernel/rcu/tree.c:2510 rcu_core_si+0x10/0x1c kernel/rcu/tree.c:2527 _stext+0x168/0x37c ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x2c/0x54 arch/arm64/kernel/entry.S:892 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq+0x70/0xbc kernel/softirq.c:452 __irq_exit_rcu+0xf0/0x140 kernel/softirq.c:650 irq_exit_rcu+0x10/0x40 kernel/softirq.c:662 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:580 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline] lock_acquire+0x130/0x1f8 kernel/locking/lockdep.c:5671 fs_reclaim_acquire+0x90/0xe0 mm/page_alloc.c:4699 might_alloc include/linux/sched/mm.h:271 [inline] slab_pre_alloc_hook mm/slab.h:710 [inline] slab_alloc_node mm/slub.c:3318 [inline] __kmem_cache_alloc_node+0x58/0x350 mm/slub.c:3437 kmalloc_trace+0x44/0x7c mm/slab_common.c:1045 kmalloc include/linux/slab.h:553 [inline] kzalloc include/linux/slab.h:689 [inline] uevent_show+0xb0/0x194 drivers/base/core.c:2487 dev_attr_show+0x3c/0x94 drivers/base/core.c:2195 sysfs_kf_seq_show+0x138/0x214 fs/sysfs/file.c:59 kernfs_seq_show+0x5c/0xd0 fs/kernfs/file.c:201 seq_read_iter+0x220/0x5e0 fs/seq_file.c:230 kernfs_fop_read_iter+0x98/0x300 fs/kernfs/file.c:275 call_read_iter include/linux/fs.h:2193 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x2d4/0x448 fs/read_write.c:470 ksys_read+0xb4/0x160 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __arm64_sys_read+0x24/0x34 fs/read_write.c:621 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: bad PC value ---[ end trace 0000000000000000 ]---
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/12/11 02:29 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | a5541c0811a0 | 67be1ae7 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | BUG: unable to handle kernel NULL pointer dereference in rcu_core | ||
2022/11/25 21:33 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 6d464646530f | 74a66371 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | BUG: unable to handle kernel NULL pointer dereference in rcu_core | ||
2022/11/21 19:45 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 9500fc6e9e60 | 1c576c23 | .config | console log | report | info | ci-upstream-gce-arm64 | BUG: unable to handle kernel NULL pointer dereference in rcu_core |