kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8566 Comm: syz-executor.0 Not tainted 4.19.46 #18 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:proto_seq_printf net/core/sock.c:3422 [inline] RIP: 0010:proto_seq_show+0x52/0x8e0 net/core/sock.c:3439 Code: 00 00 e8 a1 56 0c fc 48 8d bb 50 ff ff ff 48 8d 83 70 fe ff ff 48 89 fa 48 89 45 c8 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 0f 85 d2 07 00 00 48 83 bb 50 ff ff ff 01 19 c0 83 e0 RSP: 0018:ffff888091f9f3d0 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: dead000000000100 RCX: ffffc90005e77000 RDX: 1bd5a0000000000a RSI: ffffffff855ea8df RDI: dead000000000050 RBP: ffff888091f9f460 R08: ffff888090d3e2c0 R09: ffffed100f10b08b R10: ffffed100f10b08a R11: ffff888078858453 R12: 00000000000002d4 R13: dead000000000100 R14: ffffffff87dc6ae0 R15: 0000000000001000 FS: 00007f16195d8700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31125000 CR3: 0000000088780000 CR4: 00000000001406f0 Call Trace: seq_read+0xaae/0x1110 fs/seq_file.c:268 proc_reg_read+0x1f8/0x2b0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x490/0x640 fs/read_write.c:925 vfs_readv+0xf0/0x160 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x478/0x890 fs/splice.c:417 do_splice_to+0x127/0x180 fs/splice.c:881 splice_direct_to_actor+0x256/0x890 fs/splice.c:953 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062 do_sendfile+0x597/0xce0 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64 fs/read_write.c:1494 [inline] __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f16195d7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000459279 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 00007f16195d86d4 R13: 00000000004c65f3 R14: 00000000004db268 R15: 00000000ffffffff Modules linked in: ---[ end trace 8ef4e96020c0e17a ]--- RIP: 0010:proto_seq_printf net/core/sock.c:3422 [inline] RIP: 0010:proto_seq_show+0x52/0x8e0 net/core/sock.c:3439 Code: 00 00 e8 a1 56 0c fc 48 8d bb 50 ff ff ff 48 8d 83 70 fe ff ff 48 89 fa 48 89 45 c8 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <80> 3c 02 00 0f 85 d2 07 00 00 48 83 bb 50 ff ff ff 01 19 c0 83 e0 RSP: 0018:ffff888091f9f3d0 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: dead000000000100 RCX: ffffc90005e77000 RDX: 1bd5a0000000000a RSI: ffffffff855ea8df RDI: dead000000000050 RBP: ffff888091f9f460 R08: ffff888090d3e2c0 R09: ffffed100f10b08b R10: ffffed100f10b08a R11: ffff888078858453 R12: 00000000000002d4 R13: dead000000000100 R14: ffffffff87dc6ae0 R15: 0000000000001000 FS: 00007f16195d8700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd25414f2c CR3: 0000000088780000 CR4: 00000000001406f0