Hello, syzbot found the following issue on: HEAD commit: 05924717 bpf, tnums: Provably sound, faster, and more prec.. git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=15a3b90bd00000 kernel config: https://syzkaller.appspot.com/x/.config?x=7b1a53f9a0b5a801 dashboard link: https://syzkaller.appspot.com/bug?extid=3a2811a83af0f441ef5f Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3a2811a83af0f441ef5f@xxxxxxxxxxxxxxxxxxxxxxxxx general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 31562 Comm: kworker/u4:6 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy89 hw_scan_work RIP: 0010:mac80211_hwsim_tx_frame_nl+0x3fd/0xdb0 drivers/net/wireless/mac80211_hwsim.c:1315 Code: 48 c1 ea 03 80 3c 02 00 0f 85 50 08 00 00 4c 8b ab 90 3c 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 RSP: 0018:ffffc900017efa90 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: ffff888061fab1e0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff852894df RDI: 0000000000000004 RBP: ffff888063455dc0 R08: 0000000000000000 R09: ffff88805de76093 R10: ffffffff852894d1 R11: 000000000000003f R12: ffffc900017efb18 R13: 0000000000000000 R14: ffff888063455140 R15: ffff888061fa8d00 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32431000 CR3: 000000004e282000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: mac80211_hwsim_tx_frame+0x10d/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1773 hw_scan_work+0x7be/0xc20 drivers/net/wireless/mac80211_hwsim.c:2331 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace bd7d02fa1bf956f5 ]--- RIP: 0010:mac80211_hwsim_tx_frame_nl+0x3fd/0xdb0 drivers/net/wireless/mac80211_hwsim.c:1315 Code: 48 c1 ea 03 80 3c 02 00 0f 85 50 08 00 00 4c 8b ab 90 3c 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8 RSP: 0018:ffffc900017efa90 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: ffff888061fab1e0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff852894df RDI: 0000000000000004 RBP: ffff888063455dc0 R08: 0000000000000000 R09: ffff88805de76093 R10: ffffffff852894d1 R11: 000000000000003f R12: ffffc900017efb18 R13: 0000000000000000 R14: ffff888063455140 R15: ffff888061fa8d00 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32431000 CR3: 000000004e282000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 --- 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.
