general protection fault, probably for non-canonical address 0xf442e00014680053: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0xa2172000a3400298-0xa2172000a340029f] CPU: 1 PID: 6865 Comm: syz-executor.1 Not tainted 5.9.0-rc1-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+0x4a/0x110 kernel/bpf/hashtab.c:779 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bc 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b f8 48 8d 7d 18 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 82 00 00 00 44 8b 65 18 bf 05 RSP: 0018:ffffc90000da8e48 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff88804e000010 RCX: 00000000ffce192d RDX: 1442e40014680053 RSI: ffffffff818761be RDI: a2172000a340029a RBP: a2172000a3400282 R08: 0000000000000000 R09: ffffffff8c5fc9ff R10: fffffbfff18bf93f R11: ffffffff89bda248 R12: ffffc90000da8ed8 R13: ffff88804e000000 R14: 0000000000000000 R15: ffff888084ec8400 FS: 0000000002ebb940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016a8660 CR3: 0000000084ec1000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: rcu_do_batch kernel/rcu/tree.c:2428 [inline] rcu_core+0x5c7/0x1190 kernel/rcu/tree.c:2656 __do_softirq+0x2de/0xa24 kernel/softirq.c:298 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:706 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x9d/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x1f3/0x230 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x51/0xf0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:581 RIP: 0010:__find_get_block+0x292/0xed0 fs/buffer.c:1326 Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 e6 0a 00 00 48 83 3d 48 dd e6 07 00 0f 84 38 08 00 00 e8 85 09 a5 ff fb 66 0f 1f 44 00 00 <4d> 85 e4 0f 84 e4 01 00 00 e8 70 09 a5 ff 0f 1f 44 00 00 e8 66 09 RSP: 0018:ffffc90004c57a80 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000006 RDX: ffff888084ec8400 RSI: ffffffff81cf5edb RDI: ffffffff81cf5ea9 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8c5fca6f R10: fffffbfff18bf94d R11: 0000000000000001 R12: ffff888085270a38 R13: 00000000000003ff R14: 0000000000001000 R15: ffff888085270a38 sb_find_get_block include/linux/buffer_head.h:338 [inline] recently_deleted fs/ext4/ialloc.c:682 [inline] find_inode_bit+0x224/0x570 fs/ext4/ialloc.c:724 __ext4_new_inode+0xc83/0x5390 fs/ext4/ialloc.c:927 ext4_mkdir+0x3b1/0xdf0 fs/ext4/namei.c:2800 vfs_mkdir+0x507/0x770 fs/namei.c:3649 do_mkdirat+0x262/0x2d0 fs/namei.c:3672 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45c9d7 Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 2d c0 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 0d c0 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe9365a3c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00000000000415a6 RCX: 000000000045c9d7 RDX: 00007ffe9365a415 RSI: 00000000000001ff RDI: 00007ffe9365a410 RBP: 00000000000002e9 R08: 0000000000000000 R09: 0000000000000005 R10: 0000000000000064 R11: 0000000000000202 R12: 0000000000000006 R13: 00007ffe9365a400 R14: 000000000004145c R15: 00007ffe9365a410 Modules linked in: ---[ end trace c60b08fea928a314 ]--- RIP: 0010:htab_elem_free kernel/bpf/hashtab.c:769 [inline] RIP: 0010:htab_elem_free_rcu+0x4a/0x110 kernel/bpf/hashtab.c:779 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bc 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 6b f8 48 8d 7d 18 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 82 00 00 00 44 8b 65 18 bf 05 RSP: 0018:ffffc90000da8e48 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: ffff88804e000010 RCX: 00000000ffce192d RDX: 1442e40014680053 RSI: ffffffff818761be RDI: a2172000a340029a RBP: a2172000a3400282 R08: 0000000000000000 R09: ffffffff8c5fc9ff R10: fffffbfff18bf93f R11: ffffffff89bda248 R12: ffffc90000da8ed8 R13: ffff88804e000000 R14: 0000000000000000 R15: ffff888084ec8400 FS: 0000000002ebb940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000016a8660 CR3: 0000000084ec1000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600