Hello, syzbot found the following issue on: HEAD commit: 18531f4d1c8c Merge tag 'acpi-6.16-rc2' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=100fc5d4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=3a936e3316f9e2dc dashboard link: https://syzkaller.appspot.com/bug?extid=6554b492c7008bcd3385 compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17c8710c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10e24e82580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-18531f4d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/aa1e5854fc49/vmlinux-18531f4d.xz kernel image: https://storage.googleapis.com/syzbot-assets/ca38347f64b2/bzImage-18531f4d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6554b492c7008bcd3385@xxxxxxxxxxxxxxxxxxxxxxxxx wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in net/mac80211/mlme.c:7224:41 index 4 is out of range for type 'u8[0]' (aka 'unsigned char[0]') CPU: 0 UID: 0 PID: 38 Comm: kworker/u4:3 Not tainted 6.16.0-rc1-syzkaller-00182-g18531f4d1c8c #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: events_unbound cfg80211_wiphy_work Call Trace: <TASK> dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 ubsan_epilogue+0xa/0x40 lib/ubsan.c:233 __ubsan_handle_out_of_bounds+0xe9/0xf0 lib/ubsan.c:455 ieee80211_rx_mgmt_beacon+0x21fd/0x2c10 net/mac80211/mlme.c:7224 ieee80211_iface_process_skb net/mac80211/iface.c:1630 [inline] ieee80211_iface_work+0x49c/0xfe0 net/mac80211/iface.c:1722 cfg80211_wiphy_work+0x2df/0x460 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 </TASK> ---[ end trace ]--- Kernel panic - not syncing: UBSAN: panic_on_warn set ... CPU: 0 UID: 0 PID: 38 Comm: kworker/u4:3 Not tainted 6.16.0-rc1-syzkaller-00182-g18531f4d1c8c #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: events_unbound cfg80211_wiphy_work Call Trace: <TASK> dump_stack_lvl+0x99/0x250 lib/dump_stack.c:120 panic+0x2db/0x790 kernel/panic.c:382 check_panic_on_warn+0x89/0xb0 kernel/panic.c:273 __ubsan_handle_out_of_bounds+0xe9/0xf0 lib/ubsan.c:455 ieee80211_rx_mgmt_beacon+0x21fd/0x2c10 net/mac80211/mlme.c:7224 ieee80211_iface_process_skb net/mac80211/iface.c:1630 [inline] ieee80211_iface_work+0x49c/0xfe0 net/mac80211/iface.c:1722 cfg80211_wiphy_work+0x2df/0x460 net/wireless/core.c:435 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 </TASK> Kernel Offset: disabled Rebooting in 86400 seconds.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
