general protection fault, probably for non-canonical address 0xf3cd1e00133c0091: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x9e69100099e00488-0x9e69100099e0048f] CPU: 1 PID: 27667 Comm: syz-executor.5 Not tainted 5.9.0-rc3-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: 00010a03 RAX: dffffc0000000000 RBX: ffff888043800010 RCX: 0000000000000001 RDX: 13cd2200133c0091 RSI: ffffffff81893b0e RDI: 9e69100099e0048d RBP: 9e69100099e00475 R08: 0000000000000000 R09: ffffffff8d0c09ff R10: fffffbfff1a1813f R11: 0000000000000000 R12: ffffc90000da8ed0 R13: ffff888043800000 R14: 0000000000000000 R15: ffff88805c8b0580 FS: 00007f8b986cb700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000011890b0 CR3: 0000000059363000 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+0x5ca/0x1130 kernel/rcu/tree.c:2656 __do_softirq+0x1f8/0xb23 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+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:write_comp_data+0x2f/0x80 kernel/kcov.c:218 Code: 05 56 d6 8b 7e 65 48 8b 34 25 c0 fe 01 00 a9 00 01 ff 00 74 0f f6 c4 01 74 59 8b 86 2c 14 00 00 85 c0 74 4f 8b 86 08 14 00 00 <83> f8 03 75 44 48 8b 86 10 14 00 00 8b b6 0c 14 00 00 4c 8b 00 48 RSP: 0018:ffffc90006707518 EFLAGS: 00000246 RAX: 0000000000000002 RBX: 27ffffffffffffff RCX: ffffffff8203b94d RDX: 0000000000000008 RSI: ffff88805c8b0580 RDI: 0000000000000004 RBP: c7ffffffffffffff R08: 00000000ffffff1b R09: c7ffffffffffffff R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000004 R13: 00000000000000e4 R14: 0000000000000004 R15: 0000000000000008 ext4_es_can_be_merged.isra.0+0x4d/0x170 fs/ext4/extents_status.c:499 ext4_es_try_to_merge_right fs/ext4/extents_status.c:564 [inline] __es_insert_extent+0x8f1/0x13b0 fs/ext4/extents_status.c:778 ext4_es_insert_delayed_block+0x1d5/0x530 fs/ext4/extents_status.c:1988 ext4_insert_delayed_block fs/ext4/inode.c:1664 [inline] ext4_da_map_blocks fs/ext4/inode.c:1754 [inline] ext4_da_get_block_prep+0x836/0x1120 fs/ext4/inode.c:1818 ext4_block_write_begin+0x57b/0x1490 fs/ext4/inode.c:1060 ext4_da_write_begin+0x3e4/0x11d0 fs/ext4/inode.c:2996 generic_perform_write+0x20a/0x4f0 mm/filemap.c:3403 ext4_buffered_write_iter+0x235/0x4a0 fs/ext4/file.c:269 ext4_file_write_iter+0x1f0/0x13f0 fs/ext4/file.c:660 call_write_iter include/linux/fs.h:1882 [inline] new_sync_write+0x422/0x650 fs/read_write.c:503 vfs_write+0x5ad/0x730 fs/read_write.c:578 ksys_write+0x12d/0x250 fs/read_write.c:631 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e179 Code: 3d b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8b986cac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000039840 RCX: 000000000045e179 RDX: 0000000000400086 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffc71f8ebaf R14: 00007f8b986cb9c0 R15: 000000000118cf4c Modules linked in: ---[ end trace e2ab3e4d8e70b480 ]--- 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: 00010a03 RAX: dffffc0000000000 RBX: ffff888043800010 RCX: 0000000000000001 RDX: 13cd2200133c0091 RSI: ffffffff81893b0e RDI: 9e69100099e0048d RBP: 9e69100099e00475 R08: 0000000000000000 R09: ffffffff8d0c09ff R10: fffffbfff1a1813f R11: 0000000000000000 R12: ffffc90000da8ed0 R13: ffff888043800000 R14: 0000000000000000 R15: ffff88805c8b0580 FS: 00007f8b986cb700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000011890b0 CR3: 0000000059363000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600