general protection fault, probably for non-canonical address 0xf377d90013140068: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x9bbee80098a00340-0x9bbee80098a00347] CPU: 1 PID: 4776 Comm: syz-executor.3 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+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: 00010a02 RAX: dffffc0000000000 RBX: ffff88804d800010 RCX: 0000000000000001 RDX: 1377dd0013140068 RSI: ffffffff81894cde RDI: 9bbee80098a00341 RBP: 9bbee80098a00329 R08: 0000000000000000 R09: ffffffff8d0c29ff R10: fffffbfff1a1853f R11: 0000000000000000 R12: ffffc90000da8ed0 R13: ffff88804d800000 R14: 0000000000000000 R15: ffff88804f938200 FS: 00007f6e95415700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000502e70 CR3: 00000000a12e7000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: rcu_do_batch kernel/rcu/tree.c:2430 [inline] rcu_core+0x5ca/0x1130 kernel/rcu/tree.c:2658 __do_softirq+0x1f8/0xb23 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+0x9b/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+0x235/0x280 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:get_lock_parent_ip include/linux/ftrace.h:821 [inline] RIP: 0010:preempt_latency_start kernel/sched/core.c:4165 [inline] RIP: 0010:preempt_latency_start kernel/sched/core.c:4162 [inline] RIP: 0010:preempt_count_add+0x74/0x140 kernel/sched/core.c:4190 Code: 0f b6 c0 3d f4 00 00 00 7f 64 65 8b 05 45 f6 b0 7e 25 ff ff ff 7f 39 c3 74 03 5b 5d c3 48 8b 5c 24 10 48 89 df e8 ac 85 0b 00 <85> c0 75 35 65 48 8b 2c 25 c0 fe 01 00 48 8d bd e0 12 00 00 48 b8 RSP: 0018:ffffc900058d75d8 EFLAGS: 00000287 RAX: 0000000000000000 RBX: ffffffff8134931f RCX: 1ffffffff1a8802c RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8134931f RBP: 0000000000000001 R08: ffffffff8bd0f5c6 R09: 0000000000000001 R10: 000000000007601f R11: 0000000000000001 R12: ffffc900058d7710 R13: 0000000000000000 R14: ffff88804f938200 R15: ffffc900058d76c8 unwind_next_frame+0x11f/0x1f90 arch/x86/kernel/unwind_orc.c:434 arch_stack_walk+0x81/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:123 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:461 slab_post_alloc_hook mm/slab.h:518 [inline] slab_alloc mm/slab.c:3316 [inline] kmem_cache_alloc+0x13a/0x3f0 mm/slab.c:3486 kmem_cache_zalloc include/linux/slab.h:656 [inline] __alloc_file+0x21/0x350 fs/file_table.c:101 alloc_empty_file+0x6d/0x170 fs/file_table.c:151 path_openat+0xe3/0x2730 fs/namei.c:3354 do_filp_open+0x17e/0x3c0 fs/namei.c:3395 do_sys_openat2+0x16d/0x420 fs/open.c:1168 do_sys_open fs/open.c:1184 [inline] __do_sys_open fs/open.c:1192 [inline] __se_sys_open fs/open.c:1188 [inline] __x64_sys_open+0x119/0x1c0 fs/open.c:1188 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x417951 Code: 75 14 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 19 00 00 c3 48 83 ec 08 e8 6a fa ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 b3 fa ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f6e95414bb0 EFLAGS: 00000293 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f6e95414bd0 RCX: 0000000000417951 RDX: 00007f6e95414be8 RSI: 0000000000000002 RDI: 00007f6e95414bd0 RBP: 000000000118bf58 R08: 0000000000000000 R09: 0000000000000018 R10: 0000000000000006 R11: 0000000000000293 R12: 000000000118bf2c R13: 00007ffff90d0e4f R14: 00007f6e954159c0 R15: 000000000118bf2c Modules linked in: ---[ end trace 8e05e1b1e42d128a ]--- 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: 00010a02 RAX: dffffc0000000000 RBX: ffff88804d800010 RCX: 0000000000000001 RDX: 1377dd0013140068 RSI: ffffffff81894cde RDI: 9bbee80098a00341 RBP: 9bbee80098a00329 R08: 0000000000000000 R09: ffffffff8d0c29ff R10: fffffbfff1a1853f R11: 0000000000000000 R12: ffffc90000da8ed0 R13: ffff88804d800000 R14: 0000000000000000 R15: ffff88804f938200 FS: 00007f6e95415700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000502e70 CR3: 00000000a12e7000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600