mac80211_hwsim hwsim7 wlan1: entered allmulticast mode ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x0 WARNING: CPU: 1 PID: 7087 at net/mac80211/driver-ops.c:366 drv_unassign_vif_chanctx+0x50b/0x7e0 net/mac80211/driver-ops.c:366 Modules linked in: CPU: 1 UID: 0 PID: 7087 Comm: syz.3.360 Not tainted 6.16.0-syzkaller-06574-gd9104cec3e8f #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:drv_unassign_vif_chanctx+0x50b/0x7e0 net/mac80211/driver-ops.c:366 Code: 8d 8d b8 09 00 00 48 85 c0 48 0f 44 f1 43 0f b6 04 3e 84 c0 0f 85 6b 02 00 00 8b 55 00 48 c7 c7 00 7d ad 8c e8 06 3b a5 f6 90 <0f> 0b 90 90 e9 ee fc ff ff e8 47 97 e1 f6 90 0f 0b 90 42 80 7c 3d RSP: 0018:ffffc90003187910 EFLAGS: 00010246 RAX: 56954d48443c8b00 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000cc9a000 RSI: 000000000000815c RDI: 000000000000815d RBP: ffff888056bfd728 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa5cc R12: ffff888056bfe9d0 R13: ffff888056bfcd80 R14: 1ffff1100ad7fae5 R15: dffffc0000000000 FS: 00007f2afb05f6c0(0000) GS:ffff888125d80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2afb03ed58 CR3: 0000000075178000 CR4: 00000000003526f0 Call Trace: ieee80211_assign_link_chanctx+0x1ec/0xd70 net/mac80211/chan.c:916 __ieee80211_link_release_channel+0x33b/0x4a0 net/mac80211/chan.c:1890 ieee80211_if_change_type+0x14c/0x990 net/mac80211/iface.c:2012 ieee80211_change_iface+0xd5/0x510 net/mac80211/cfg.c:254 rdev_change_virtual_intf net/wireless/rdev-ops.h:74 [inline] cfg80211_change_iface+0x795/0xef0 net/wireless/util.c:1265 cfg80211_wext_siwmode+0x1db/0x2a0 net/wireless/wext-compat.c:66 ioctl_standard_call+0xcb/0x1b0 net/wireless/wext-core.c:1043 wireless_process_ioctl net/wireless/wext-core.c:-1 [inline] wext_ioctl_dispatch+0xee/0x410 net/wireless/wext-core.c:1014 wext_handle_ioctl+0x100/0x1c0 net/wireless/wext-core.c:1075 sock_ioctl+0x15f/0x790 net/socket.c:1291 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2afa18eb69 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2afb05f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f2afa3b5fa0 RCX: 00007f2afa18eb69 RDX: 0000200000000000 RSI: 0000000000008b06 RDI: 0000000000000009 RBP: 00007f2afa211df1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2afa3b5fa0 R15: 00007ffe65a9ab18