------------[ cut here ]------------ WARNING: CPU: 0 PID: 5196 at net/mac80211/tx.c:5034 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5034 [inline] WARNING: CPU: 0 PID: 5196 at net/mac80211/tx.c:5034 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5029 [inline] WARNING: CPU: 0 PID: 5196 at net/mac80211/tx.c:5034 __ieee80211_beacon_get+0x14aa/0x16b0 net/mac80211/tx.c:5461 Modules linked in: CPU: 0 PID: 5196 Comm: syz-executor236 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5034 [inline] RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5029 [inline] RIP: 0010:__ieee80211_beacon_get+0x14aa/0x16b0 net/mac80211/tx.c:5461 Code: 00 89 df 44 89 e6 e8 35 c2 40 f7 44 38 e3 72 a3 e8 6b c8 40 f7 48 89 ef e8 53 64 91 f7 31 ed e9 9e fe ff ff e8 57 c8 40 f7 90 <0f> 0b 90 e9 88 f6 ff ff 48 89 c6 48 c7 c7 e0 bb 6e 8f 48 89 04 24 RSP: 0018:ffffc90000007b90 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8a4d6a62 RDX: ffff8880285c9e00 RSI: ffffffff8a4d73d9 RDI: 0000000000000001 RBP: ffffc90000007c40 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000002 R12: ffff888015704800 R13: 0000000000000041 R14: ffff88807f574ca0 R15: ffff88807f576750 FS: 0000555560d503c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd7e2c01b8 CR3: 000000001f434000 CR4: 0000000000350ef0 Call Trace: ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5588 ieee80211_beacon_get include/net/mac80211.h:5552 [inline] mac80211_hwsim_beacon_tx+0x48d/0x880 drivers/net/wireless/virtual/mac80211_hwsim.c:2296 __iterate_interfaces+0x2d5/0x580 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:808 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2326 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x20f/0xc20 kernel/time/hrtimer.c:1756 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1773 __do_softirq+0x21b/0x8de kernel/softirq.c:554 invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:633 [inline] irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x60 kernel/kcov.c:207 Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 48 8b 15 c4 97 75 7e 65 8b 05 c5 97 75 7e a9 00 01 ff 00 48 8b 34 24 <74> 0f f6 c4 01 74 35 8b 82 14 16 00 00 85 c0 74 2b 8b 82 f0 15 00 RSP: 0018:ffffc900047ef7b8 EFLAGS: 00000246 RAX: 0000000080000001 RBX: ffffffff9022a6f0 RCX: ffffffff813c8bf4 RDX: ffff8880285c9e00 RSI: ffffffff813c8c07 RDI: 0000000000000006 RBP: ffffffff9022a6f8 R08: 0000000000000006 R09: ffffffff8ae00125 R10: ffffffff8ae0014e R11: 0000000000000001 R12: ffffffff8ae00125 R13: ffffffff8ae0014e R14: dffffc0000000000 R15: ffffffff9022a6fc __orc_find+0xd7/0x130 arch/x86/kernel/unwind_orc.c:99 orc_find arch/x86/kernel/unwind_orc.c:227 [inline] unwind_next_frame+0x335/0x23a0 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:240 [inline] __kasan_slab_free+0x11d/0x1a0 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2106 [inline] slab_free mm/slub.c:4280 [inline] kfree+0x129/0x370 mm/slub.c:4390 skb_kfree_head net/core/skbuff.c:1096 [inline] skb_free_head+0x110/0x1e0 net/core/skbuff.c:1108 skb_release_data+0x76c/0x990 net/core/skbuff.c:1136 skb_release_all net/core/skbuff.c:1202 [inline] __kfree_skb net/core/skbuff.c:1216 [inline] kfree_skb_reason+0x12d/0x210 net/core/skbuff.c:1252 kfree_skb include/linux/skbuff.h:1267 [inline] unix_release_sock+0x813/0xf80 net/unix/af_unix.c:659 unix_release+0x91/0xf0 net/unix/af_unix.c:1049 __sock_release+0xb3/0x270 net/socket.c:659 sock_close+0x1c/0x30 net/socket.c:1421 __fput+0x273/0xb80 fs/file_table.c:422 __fput_sync+0x47/0x50 fs/file_table.c:507 __do_sys_close fs/open.c:1556 [inline] __se_sys_close fs/open.c:1541 [inline] __x64_sys_close+0x86/0x100 fs/open.c:1541 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fcd7e34900a Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 73 7c 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 d3 7c 02 00 8b 44 24 RSP: 002b:00007ffe82b5aaf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fcd7e34900a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000020451 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000003e8 R13: 00007fcd7e3d337c R14: 0000000000020483 R15: 00007ffe82b5abe0 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: f3 0f 1e fa endbr64 12: 65 48 8b 15 c4 97 75 mov %gs:0x7e7597c4(%rip),%rdx # 0x7e7597de 19: 7e 1a: 65 8b 05 c5 97 75 7e mov %gs:0x7e7597c5(%rip),%eax # 0x7e7597e6 21: a9 00 01 ff 00 test $0xff0100,%eax 26: 48 8b 34 24 mov (%rsp),%rsi * 2a: 74 0f je 0x3b <-- trapping instruction 2c: f6 c4 01 test $0x1,%ah 2f: 74 35 je 0x66 31: 8b 82 14 16 00 00 mov 0x1614(%rdx),%eax 37: 85 c0 test %eax,%eax 39: 74 2b je 0x66 3b: 8b .byte 0x8b 3c: 82 (bad) 3d: f0 lock 3e: 15 .byte 0x15