------------[ cut here ]------------ wlan0: Failed check-sdata-in-driver check, flags: 0x0 WARNING: net/mac80211/driver-ops.h:1723 at drv_can_activate_links net/mac80211/driver-ops.h:1723 [inline], CPU#0: kworker/u8:4/61 WARNING: net/mac80211/driver-ops.h:1723 at ieee80211_set_active_links+0x2d0/0x9d0 net/mac80211/link.c:597, CPU#0: kworker/u8:4/61 Modules linked in: CPU: 0 UID: 0 PID: 61 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:drv_can_activate_links net/mac80211/driver-ops.h:1723 [inline] RIP: 0010:ieee80211_set_active_links+0x2d7/0x9d0 net/mac80211/link.c:597 Code: 06 00 00 e8 6b 1c 05 f7 48 8b 34 24 48 81 c6 20 01 00 00 48 89 34 24 e8 57 1c 05 f7 48 8d 3d 40 8a e7 05 48 8b 34 24 44 89 fa <67> 48 0f b9 3a e9 e0 fe ff ff e8 3a 1c 05 f7 0f b7 c5 4c 8d bb 30 RSP: 0018:ffffc9000210faf0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888145a82a90 RCX: ffffffff8b02fa6e RDX: 0000000000000000 RSI: ffff888145a80120 RDI: ffffffff90ea8510 RBP: 0000000000000040 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888145a817f8 R13: 0000000000000000 R14: ffff8880298b8e80 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88812434a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b34712ff8 CR3: 0000000040ffe000 CR4: 00000000003526f0 Call Trace: ieee80211_if_parse_active_links+0xbb/0x120 net/mac80211/debugfs_netdev.c:732 wiphy_locked_debugfs_write_work+0xe6/0x1c0 net/wireless/debugfs.c:248 cfg80211_wiphy_work+0x446/0x5c0 net/wireless/core.c:440 process_one_work+0xa23/0x19a0 kernel/workqueue.c:3276 process_scheduled_works kernel/workqueue.c:3359 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3440 kthread+0x370/0x450 kernel/kthread.c:436 ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: e8 6b 1c 05 f7 call 0xf7051c72 7: 48 8b 34 24 mov (%rsp),%rsi b: 48 81 c6 20 01 00 00 add $0x120,%rsi 12: 48 89 34 24 mov %rsi,(%rsp) 16: e8 57 1c 05 f7 call 0xf7051c72 1b: 48 8d 3d 40 8a e7 05 lea 0x5e78a40(%rip),%rdi # 0x5e78a62 22: 48 8b 34 24 mov (%rsp),%rsi 26: 44 89 fa mov %r15d,%edx * 29: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2e: e9 e0 fe ff ff jmp 0xffffff13 33: e8 3a 1c 05 f7 call 0xf7051c72 38: 0f b7 c5 movzwl %bp,%eax 3b: 4c rex.WR 3c: 8d .byte 0x8d 3d: bb .byte 0xbb 3e: 30 .byte 0x30