bisecting fixing commit since 1048ba83fb1c00cd24172e23e8263972f6b5d9ac building syzkaller on e6b95f320e195f8f4ddab87c7442dae4b7ac4c8e testing commit 1048ba83fb1c00cd24172e23e8263972f6b5d9ac compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 9c2f16f925ae12b70002b4c803b6a28682fc3502677ed8b03bb13e026063fe7c all runs: crashed: WARNING in ieee80211_check_rate_mask testing current HEAD c5eb0a61238dd6faf37f58c9ce61c9980aaffd7a testing commit c5eb0a61238dd6faf37f58c9ce61c9980aaffd7a compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: da2588fbeda524701d31488f0bab79d9c2ea7837cbf6316fd94a23c185674ab2 all runs: crashed: WARNING in ieee80211_check_rate_mask revisions tested: 2, total time: 17m17.561938039s (build: 10m18.422390493s, test: 6m7.712286663s) the crash still happens on HEAD commit msg: Linux 5.18-rc6 crash: WARNING in ieee80211_check_rate_mask netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4111 at net/mac80211/rate.c:282 ieee80211_check_rate_mask+0x224/0x360 Modules linked in: CPU: 1 PID: 4111 Comm: syz-executor.0 Not tainted 5.18.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ieee80211_check_rate_mask+0x224/0x360 Code: 7c 08 84 d2 0f 85 4a 01 00 00 44 89 ac ab 08 0d 00 00 48 83 c4 10 5b 5d 41 5c 41 5d c3 0f 0b 48 83 c4 10 5b 5d 41 5c 41 5d c3 <0f> 0b eb e4 44 89 4c 24 04 e8 8e 28 cd f9 44 8b 4c 24 04 e9 5a fe RSP: 0018:ffffc90002dbf4e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88807e1f0c80 RCX: 0000000000000000 RDX: 1ffff1100fc3e461 RSI: 000000000000000b RDI: ffff88807e1f2308 RBP: ffff88807f7ab638 R08: ffff88807283e821 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000020 R13: ffff88807e1f0c80 R14: ffff88807f7a86c0 R15: 0000000000000000 FS: 00007f070cbcc700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff72858c88 CR3: 0000000019b21000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_change_bss+0x41b/0x980 nl80211_set_bss+0x66a/0xab0 genl_family_rcv_msg_doit+0x1e4/0x2f0 genl_rcv_msg+0x27a/0x4a0 netlink_rcv_skb+0x118/0x370 genl_rcv+0x1f/0x30 netlink_unicast+0x433/0x710 netlink_sendmsg+0x770/0xc20 sock_sendmsg+0xab/0xe0 ____sys_sendmsg+0x5b9/0x7a0 ___sys_sendmsg+0xd3/0x150 __sys_sendmsg+0xb2/0x140 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465b09 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f070cbcc188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000004 RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007fff78e77c0f R14: 00007f070cbcc300 R15: 0000000000022000