------------[ cut here ]------------ wlan1: 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/u8:20/6723 WARNING: net/mac80211/driver-ops.h:1723 at ieee80211_set_active_links+0x4a0/0x8a0 net/mac80211/link.c:652, CPU#0: kworker/u8:20/6723 Modules linked in: CPU: 0 UID: 0 PID: 6723 Comm: kworker/u8:20 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 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+0x4ec/0x8a0 net/mac80211/link.c:652 Code: 01 00 00 48 85 c0 49 8d 87 c8 ec ff ff 4c 0f 44 e8 41 0f b6 04 1e 84 c0 0f 85 2d 01 00 00 41 8b 14 24 48 8b 7c 24 10 4c 89 ee <67> 48 0f b9 3a e9 20 fd ff ff e8 f5 a2 68 f6 90 0f 0b 90 e9 87 fd RSP: 0018:ffffc9000392f928 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88802b840000 RDX: 0000000000000000 RSI: ffff8880290cc120 RDI: ffffffff90ada290 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000010 R11: 0000000000000000 R12: ffff8880290cd928 R13: ffff8880290cc120 R14: 1ffff11005219b25 R15: ffff8880290cec70 FS: 0000000000000000(0000) GS:ffff88812488a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c37f77d CR3: 000000007ad22000 CR4: 00000000003526f0 Call Trace: ieee80211_if_parse_active_links+0xe5/0x150 net/mac80211/debugfs_netdev.c:732 wiphy_locked_debugfs_write_work+0xdd/0x120 net/wireless/debugfs.c:248 cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:541 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560 kthread+0x38b/0x480 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess): 0: 01 00 add %eax,(%rax) 2: 00 48 85 add %cl,-0x7b(%rax) 5: c0 49 8d 87 rorb $0x87,-0x73(%rcx) 9: c8 ec ff ff enter $0xffec,$0xff d: 4c 0f 44 e8 cmove %rax,%r13 11: 41 0f b6 04 1e movzbl (%r14,%rbx,1),%eax 16: 84 c0 test %al,%al 18: 0f 85 2d 01 00 00 jne 0x14b 1e: 41 8b 14 24 mov (%r12),%edx 22: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi 27: 4c 89 ee mov %r13,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 20 fd ff ff jmp 0xfffffd54 34: e8 f5 a2 68 f6 call 0xf668a32e 39: 90 nop 3a: 0f 0b ud2 3c: 90 nop 3d: e9 .byte 0xe9 3e: 87 fd xchg %edi,%ebp