bisecting fixing commit since 92bf22614b21a2706f4993b278017e437f7785b3 building syzkaller on 2ce644fcea660c78bc6a3ce7e05079a730743671 testing commit 92bf22614b21a2706f4993b278017e437f7785b3 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 84a587466621a2614c27abc164bf1901a888a832a5e96a890ab101f45f07c394 all runs: crashed: WARNING in drv_remove_interface testing current HEAD 4de593fb965fc2bd11a0b767e0c65ff43540a6e4 testing commit 4de593fb965fc2bd11a0b767e0c65ff43540a6e4 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2a54a41e2e388f525384e9d4083aa28c6e5184316fd3ab5d70770a1f2d05d980 all runs: crashed: WARNING in drv_remove_interface revisions tested: 2, total time: 20m55.187456783s (build: 12m51.010891181s, test: 7m16.248749055s) the crash still happens on HEAD commit msg: Merge tag 'net-5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net crash: WARNING in drv_remove_interface ------------[ cut here ]------------ wlan0: Failed check-sdata-in-driver check, flags: 0x4 WARNING: CPU: 0 PID: 10026 at net/mac80211/driver-ops.c:97 drv_remove_interface+0x2dc/0x340 net/mac80211/driver-ops.c:97 Modules linked in: CPU: 0 PID: 10026 Comm: syz-executor.4 Not tainted 5.15.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drv_remove_interface+0x2dc/0x340 net/mac80211/driver-ops.c:97 Code: c1 e9 03 80 3c 01 00 75 72 48 8b 83 40 06 00 00 48 8d b3 60 06 00 00 48 c7 c7 80 6b d6 89 48 85 c0 48 0f 45 f0 e8 19 ba 64 00 <0f> 0b eb 90 e8 2b 9c ee f9 e9 ff fd ff ff 4c 89 ef e8 0e 9c ee f9 RSP: 0018:ffffc900037a7780 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88806e250c80 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff891c7a20 RDI: fffff520006f4ee2 RBP: ffff88805f290d60 R08: 0000000000000001 R09: ffff8880ba02bf87 R10: ffffed10174057f0 R11: 46203a306e616c77 R12: ffff88805f292920 R13: ffff88806e2512d0 R14: dffffc0000000000 R15: ffff88805f290d60 FS: 00007f9bf6e22700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7374f3b000 CR3: 000000006cf6d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_do_stop+0xe57/0x1ae0 net/mac80211/iface.c:612 ieee80211_stop+0xad/0x240 net/mac80211/iface.c:649 __dev_close_many+0x18e/0x2a0 net/core/dev.c:1568 __dev_close net/core/dev.c:1580 [inline] __dev_change_flags+0x24f/0x650 net/core/dev.c:8759 dev_change_flags+0x86/0x150 net/core/dev.c:8832 devinet_ioctl+0x102e/0x16c0 net/ipv4/devinet.c:1142 inet_ioctl+0x1a8/0x290 net/ipv4/af_inet.c:971 sock_do_ioctl+0xc9/0x1c0 net/socket.c:1118 sock_ioctl+0x278/0x510 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 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:00007f9bf6e22188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09 RDX: 0000000020001000 RSI: 0000000000008914 RDI: 0000000000000003 RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffc73b8c3ff R14: 00007f9bf6e22300 R15: 0000000000022000