vivid-000: ================= START STATUS ================= vivid-000: Test Pattern: 75% Colorbar vivid-000: Fill Percentage of Frame: 100 vivid-000: Horizontal Movement: No Movement ------------[ cut here ]------------ WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x48a/0x840 kernel/printk/printk_ringbuffer.c:1278, CPU#1: syz.4.54/6154 Modules linked in: CPU: 1 UID: 0 PID: 6154 Comm: syz.4.54 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:get_data+0x48a/0x840 kernel/printk/printk_ringbuffer.c:1278 Code: 83 c4 f8 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 ee 01 00 00 44 89 65 00 49 83 c5 08 eb 13 e8 57 cd 1e 00 90 <0f> 0b 90 eb 05 e8 4c cd 1e 00 45 31 ed 4c 89 e8 48 83 c4 28 5b 41 RSP: 0018:ffffc900037e7440 EFLAGS: 00010093 RAX: ffffffff81a15c59 RBX: 00003fffffffffff RCX: ffff88802fca1e40 RDX: 0000000000000000 RSI: 00003fffffffffff RDI: 0000000000000000 RBP: 0000000000000012 R08: ffffc900037e7587 R09: 1ffff920006fceb0 R10: dffffc0000000000 R11: fffff520006fceb1 R12: 0000000000000012 R13: 0000000000000000 R14: ffffffff8de31f20 R15: 1ffffffff1bcaa96 FS: 00007f1a918906c0(0000) GS:ffff888126022000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2dd1d62f70 CR3: 00000000320be000 CR4: 00000000003526f0 Call Trace: prb_reserve_in_last+0x574/0x18f0 kernel/printk/printk_ringbuffer.c:1447 vprintk_store+0x641/0xd00 kernel/printk/printk.c:2273 vprintk_emit+0x15f/0x590 kernel/printk/printk.c:2399 _printk+0xcf/0x120 kernel/printk/printk.c:2448 log_ctrl drivers/media/v4l2-core/v4l2-ctrls-core.c:2718 [inline] v4l2_ctrl_handler_log_status+0x236/0x3b0 drivers/media/v4l2-core/v4l2-ctrls-core.c:2751 v4l2_ctrl_log_status+0x96/0xb0 drivers/media/v4l2-core/v4l2-ctrls-api.c:1260 vidioc_log_status+0x64/0x120 drivers/media/test-drivers/vivid/vivid-core.c:452 v4l_log_status+0x89/0xf0 drivers/media/v4l2-core/v4l2-ioctl.c:2640 __video_do_ioctl+0xa59/0xc10 drivers/media/v4l2-core/v4l2-ioctl.c:3129 video_usercopy+0x82d/0x1450 drivers/media/v4l2-core/v4l2-ioctl.c:3471 v4l2_ioctl+0x18d/0x1e0 drivers/media/v4l2-core/v4l2-dev.c:366 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1a9098efc9 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:00007f1a91890038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1a90be5fa0 RCX: 00007f1a9098efc9 RDX: 0000000000000000 RSI: 0000000000005646 RDI: 0000000000000003 RBP: 00007f1a90a11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1a90be6038 R14: 00007f1a90be5fa0 R15: 00007fff22c5e4c8