general protection fault, probably for non-canonical address 0xe7e8270017d80071: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x3f415800bec00388-0x3f415800bec0038f] CPU: 0 PID: 27373 Comm: syz-executor.0 Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:htab_elem_free kernel/bpf/hashtab.c:769 [inline] RIP: 0010:htab_elem_free_rcu+0x41/0xf0 kernel/bpf/hashtab.c:779 Code: eb ff 49 8d 5e f8 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 4d 15 2b 00 4c 8b 3b 49 8d 5f 18 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 75 6b 49 83 c6 f0 8b 1b bf 05 00 00 00 89 de e8 RSP: 0018:ffffc90000007e60 EFLAGS: 00010207 RAX: 07e82b0017d80071 RBX: 3f415800bec0038f RCX: ffff8880a81b0380 RDX: 0000000000000100 RSI: ffff8880a81b0ce0 RDI: ffff888016c00010 RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff16c809b R10: fffffbfff16c809b R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888016c00018 R14: ffff888016c00010 R15: 3f415800bec00377 FS: 0000000002e4d940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016aad50 CR3: 0000000027ee7000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_do_batch kernel/rcu/tree.c:2430 [inline] rcu_core+0x79b/0x1130 kernel/rcu/tree.c:2658 __do_softirq+0x256/0x6d5 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x8f/0xe0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu+0x21f/0x230 kernel/softirq.c:423 irq_exit_rcu+0x5/0x20 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0xd5/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] RIP: 0010:lock_acquire+0x19b/0x720 kernel/locking/lockdep.c:5032 Code: 89 48 c1 e8 03 80 3c 28 00 74 0c 48 c7 c7 b8 17 6d 89 e8 48 fb 5a 00 48 83 3d c8 2e 13 08 00 0f 84 24 05 00 00 4c 89 e7 57 9d <0f> 1f 44 00 00 65 48 8b 04 25 28 00 00 00 48 3b 44 24 50 0f 85 fd RSP: 0018:ffffc90007427a90 EFLAGS: 00000286 RAX: 1ffffffff12da2f7 RBX: 0000000000000000 RCX: bc0e2e7293fc5d77 RDX: dffffc0000000000 RSI: ffff8880a81b0cb8 RDI: 0000000000000286 RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffffbfff16c8099 R10: fffffbfff16c8099 R11: 0000000000000000 R12: 0000000000000286 R13: ffff8880a81b0c64 R14: 0000000000000002 R15: 1ffff1101503618c rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:241 rcu_read_lock include/linux/rcupdate.h:634 [inline] ext4_get_group_desc+0xe2/0x420 fs/ext4/balloc.c:284 recently_deleted fs/ext4/ialloc.c:678 [inline] find_inode_bit+0x28a/0x660 fs/ext4/ialloc.c:724 __ext4_new_inode+0xfc8/0x5180 fs/ext4/ialloc.c:927 ext4_mkdir+0x3be/0x14c0 fs/ext4/namei.c:2800 vfs_mkdir+0x42a/0x600 fs/namei.c:3649 do_mkdirat+0x1b9/0x310 fs/namei.c:3672 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d247 Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 dd bf fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 bd bf fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff892aa8c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00000000000a8e96 RCX: 000000000045d247 RDX: 00007fff892aa913 RSI: 00000000000001ff RDI: 00007fff892aa910 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000007 R13: 00007fff892aa900 R14: 00000000000a8e80 R15: 00007fff892aa910 Modules linked in: ---[ end trace c06ac9a89faaa66f ]--- RIP: 0010:htab_elem_free kernel/bpf/hashtab.c:769 [inline] RIP: 0010:htab_elem_free_rcu+0x41/0xf0 kernel/bpf/hashtab.c:779 Code: eb ff 49 8d 5e f8 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 4d 15 2b 00 4c 8b 3b 49 8d 5f 18 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 75 6b 49 83 c6 f0 8b 1b bf 05 00 00 00 89 de e8 RSP: 0018:ffffc90000007e60 EFLAGS: 00010207 RAX: 07e82b0017d80071 RBX: 3f415800bec0038f RCX: ffff8880a81b0380 RDX: 0000000000000100 RSI: ffff8880a81b0ce0 RDI: ffff888016c00010 RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff16c809b R10: fffffbfff16c809b R11: 0000000000000000 R12: dffffc0000000000 R13: ffff888016c00018 R14: ffff888016c00010 R15: 3f415800bec00377 FS: 0000000002e4d940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016aad50 CR3: 0000000027ee7000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400