netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. BUG: unable to handle page fault for address: ffffffffe1bb059d #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 428c067 P4D 428c067 PUD 428e067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 20777 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:fl_dump_key+0x17/0xec0 net/sched/cls_flower.c:2784 Code: 0b e9 03 ff ff ff e8 d8 5a 6e 00 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 49 89 fc 55 48 89 cd 53 48 89 d3 48 83 ec 20 <8b> 11 65 48 8b 04 25 28 00 00 00 48 89 44 24 18 31 c0 85 d2 74 35 RSP: 0018:ffffc9000146b900 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffffe1bb03b5 RCX: ffffffffe1bb059d RDX: ffffffffe1bb03b5 RSI: ffff888125644080 RDI: ffff88811ee5ac00 RBP: ffffffffe1bb059d R08: 0000000000000004 R09: ffff8880b2f0603c R10: ffff8880b2a3c0c0 R11: d5231cd2ef920d83 R12: ffff88811ee5ac00 R13: ffff888125644080 R14: ffff8880b2f06000 R15: ffff8880b2ebd800 FS: 00007f6dbb9a4700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffe1bb059d CR3: 00000000b2f76000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: fl_tmplt_dump+0x49/0xb0 net/sched/cls_flower.c:3101 tc_chain_fill_node+0x128/0x1b0 net/sched/cls_api.c:2681 tc_chain_notify+0x94/0x110 net/sched/cls_api.c:2707 tc_ctl_chain+0x4bb/0x650 net/sched/cls_api.c:2893 rtnetlink_rcv_msg+0x173/0x480 net/core/rtnetlink.c:5563 netlink_rcv_skb+0x41/0x110 net/netlink/af_netlink.c:2470 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x19a/0x270 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x248/0x480 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0x2b/0x40 net/socket.c:671 ____sys_sendmsg+0x1ed/0x230 net/socket.c:2353 ___sys_sendmsg+0x77/0xb0 net/socket.c:2407 __sys_sendmsg+0x52/0xa0 net/socket.c:2440 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cba9 Code: 8d b6 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f6dbb9a3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000502820 RCX: 000000000045cba9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000009 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a44 R14: 00000000004cd332 R15: 00007f6dbb9a46d4 Modules linked in: CR2: ffffffffe1bb059d ---[ end trace 5b1fda708b3a2f1f ]--- RIP: 0010:fl_dump_key+0x17/0xec0 net/sched/cls_flower.c:2784 Code: 0b e9 03 ff ff ff e8 d8 5a 6e 00 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 41 54 49 89 fc 55 48 89 cd 53 48 89 d3 48 83 ec 20 <8b> 11 65 48 8b 04 25 28 00 00 00 48 89 44 24 18 31 c0 85 d2 74 35 RSP: 0018:ffffc9000146b900 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffffffe1bb03b5 RCX: ffffffffe1bb059d RDX: ffffffffe1bb03b5 RSI: ffff888125644080 RDI: ffff88811ee5ac00 RBP: ffffffffe1bb059d R08: 0000000000000004 R09: ffff8880b2f0603c R10: ffff8880b2a3c0c0 R11: d5231cd2ef920d83 R12: ffff88811ee5ac00 R13: ffff888125644080 R14: ffff8880b2f06000 R15: ffff8880b2ebd800 FS: 00007f6dbb9a4700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffe1bb059d CR3: 00000000b2f76000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400