Hello, syzbot found the following issue on: HEAD commit: ae3419fbac84 vc_screen: don't clobber return value in vcs_.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1416fe18c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=f763d89e26d3d4c4 dashboard link: https://syzkaller.appspot.com/bug?extid=b10a54cb0355d83fd75c compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/35978c167752/disk-ae3419fb.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cf285a5d176b/vmlinux-ae3419fb.xz kernel image: https://storage.googleapis.com/syzbot-assets/6e8d414e67aa/bzImage-ae3419fb.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b10a54cb0355d83fd75c@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5872 at net/mac80211/ibss.c:500 ieee80211_ibss_csa_beacon+0x572/0x620 Modules linked in: CPU: 1 PID: 5872 Comm: kworker/u4:16 Not tainted 6.2.0-syzkaller-12913-gae3419fbac84 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Workqueue: phy4 ieee80211_csa_finalize_work RIP: 0010:ieee80211_ibss_csa_beacon+0x572/0x620 net/mac80211/ibss.c:500 Code: f7 c6 05 d1 4a 2d 04 01 48 c7 c7 e0 af 0d 8c be fd 01 00 00 48 c7 c2 80 b0 0d 8c e8 98 4f 39 f7 e9 6e fe ff ff e8 de ea 59 f7 <0f> 0b b8 ea ff ff ff e9 7a ff ff ff e8 cd ea 59 f7 0f 0b e9 f9 fa RSP: 0018:ffffc9000bad7b48 EFLAGS: 00010293 RAX: ffffffff8a32fba2 RBX: ffff88803c8b3838 RCX: ffff88802594d7c0 RDX: 0000000000000000 RSI: ffffffff8b0a8b80 RDI: ffffffff8b587580 RBP: ffff888028d65aaa R08: dffffc0000000000 R09: fffffbfff209e051 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888028d65ab0 R13: ffff88803c8b06c0 R14: ffff888028d64c80 R15: ffff888028d65ad0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32337000 CR3: 000000007baf6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000003b DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: <TASK> ieee80211_set_after_csa_beacon net/mac80211/cfg.c:3523 [inline] __ieee80211_csa_finalize net/mac80211/cfg.c:3585 [inline] ieee80211_csa_finalize+0x54c/0xe50 net/mac80211/cfg.c:3609 ieee80211_csa_finalize_work+0xfc/0x140 net/mac80211/cfg.c:3634 process_one_work+0x915/0x13a0 kernel/workqueue.c:2390 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537 kthread+0x270/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> --- 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.
