------------[ cut here ]------------ WARNING: CPU: 0 PID: 7109 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] WARNING: CPU: 0 PID: 7109 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469 Modules linked in: CPU: 0 UID: 0 PID: 7109 Comm: syz.6.281 Not tainted 6.13.0-rc3-syzkaller-00209-g499551201b5f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] RIP: 0010:__ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469 Code: e8 33 1a 5c f6 eb 0d e8 2c 1a 5c f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 7c dc b6 f6 45 31 ed e9 4c fe ff ff e8 0f 1a 5c f6 90 <0f> 0b 90 e9 00 f7 ff ff e8 01 1a 5c f6 90 0f 0b 90 e9 e8 f8 ff ff vkms_vblank_simulate: vblank timer overrun RSP: 0018:ffffc900000079e0 EFLAGS: 00010246 RAX: ffffffff8b4359e1 RBX: 0000000000000000 RCX: ffff88801c32da00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8b4350dd R09: ffffffff8b434ae0 R10: 0000000000000003 R11: ffff88801c32da00 R12: ffff888032d62500 R13: ffff88806d4ef400 R14: ffff888032d629d0 R15: ffff888032d60d80 FS: 00007f0f3f77d6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe4dd89f28 CR3: 000000007dbf8000 CR4: 0000000000350ef0 Call Trace: ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5635 [inline] mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x299/0x570 net/mac80211/util.c:758 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:794 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x59d/0xd30 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820 handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216 Code: 8b 3d 74 ef 8e 0c 48 89 de 5b e9 13 f1 5a 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 00 d6 03 00 65 8b 15 00 62 64 7e 81 e2 00 01 ff 00 RSP: 0018:ffffc90003187928 EFLAGS: 00000246 RAX: ffffffff84f8b2d9 RBX: 000000002018cb80 RCX: ffffc90003187803 RDX: 0000000000000000 RSI: ffffffff8c0aa960 RDI: ffffffff8c5faee0 RBP: ffffc90003187a70 R08: ffffffff90197d77 R09: 1ffffffff2032fae R10: dffffc0000000000 R11: fffffbfff2032faf R12: 000000002018cb80 R13: dffffc0000000000 R14: ffffc900031879c0 R15: 0000000000000038 should_fail_usercopy+0x9/0x20 lib/fault-inject-usercopy.c:36 _inline_copy_from_user include/linux/uaccess.h:163 [inline] _copy_from_user+0x2f/0xc0 lib/usercopy.c:18 copy_from_user include/linux/uaccess.h:212 [inline] copy_msghdr_from_user+0xae/0x680 net/socket.c:2513 recvmsg_copy_msghdr net/socket.c:2769 [inline] ___sys_recvmsg net/socket.c:2841 [inline] do_recvmmsg+0x3bd/0xab0 net/socket.c:2940 __sys_recvmmsg net/socket.c:3014 [inline] __do_sys_recvmmsg net/socket.c:3037 [inline] __se_sys_recvmmsg net/socket.c:3030 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3030 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0f3e985d29 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:00007f0f3f77d038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f0f3eb76080 RCX: 00007f0f3e985d29 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f0f3ea01aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0f3eb76080 R15: 00007ffdef312b88 ---------------- Code disassembly (best guess): 0: 8b 3d 74 ef 8e 0c mov 0xc8eef74(%rip),%edi # 0xc8eef7a 6: 48 89 de mov %rbx,%rsi 9: 5b pop %rbx a: e9 13 f1 5a 00 jmp 0x5af122 f: 0f 1f 00 nopl (%rax) 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: f3 0f 1e fa endbr64 26: 48 8b 04 24 mov (%rsp),%rax * 2a: 65 48 8b 0c 25 00 d6 mov %gs:0x3d600,%rcx <-- trapping instruction 31: 03 00 33: 65 8b 15 00 62 64 7e mov %gs:0x7e646200(%rip),%edx # 0x7e64623a 3a: 81 e2 00 01 ff 00 and $0xff0100,%edx