CVE-2023-54277— fbdev: udlfb: Fix endpoint check
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I. Basic Information for CVE-2023-54277
Vulnerability Information
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Vulnerability Title
fbdev: udlfb: Fix endpoint check
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: udlfb: Fix endpoint check The syzbot fuzzer detected a problem in the udlfb driver, caused by an endpoint not having the expected type: usb 1-1: Read EDID byte 0 failed: -71 usb 1-1: Unable to get valid EDID from device/display ------------[ cut here ]------------ usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 Modules linked in: CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 Workqueue: usb_hub_wq hub_event RIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 ... Call Trace: <TASK> dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980 dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315 dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111 dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743 The current approach for this issue failed to catch the problem because it only checks for the existence of a bulk-OUT endpoint; it doesn't check whether this endpoint is the one that the driver will actually use. We can fix the problem by instead checking that the endpoint used by the driver does exist and is bulk-OUT.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于fbdev: udlfb中端点类型检查不当，可能导致无效URB提交。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-54277
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Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total
| CVE-2023-54266 | media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer() | |
| CVE-2023-54250 | ksmbd: avoid out of bounds access in decode_preauth_ctxt() | |
| CVE-2023-54249 | bus: mhi: ep: Only send -ENOTCONN status if client driver is available | |
| CVE-2023-54251 | net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX. | |
| CVE-2023-54253 | btrfs: set page extent mapped after read_folio in relocate_one_page | |
| CVE-2023-54252 | platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings | |
| CVE-2023-54254 | drm/ttm: Don't leak a resource on eviction error | |
| CVE-2023-54255 | sh: dma: Fix DMA channel offset calculation | |
| CVE-2023-54257 | net: macb: fix a memory corruption in extended buffer descriptor mode | |
| CVE-2023-54258 | cifs: fix potential oops in cifs_oplock_break | |
| CVE-2023-54259 | soundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow | |
| CVE-2023-54260 | cifs: Fix lost destroy smbd connection when MR allocate failed | |
| CVE-2023-54261 | drm/amdkfd: Add missing gfx11 MQD manager callbacks | |
| CVE-2023-54262 | net/mlx5e: Don't clone flow post action attributes second time | |
| CVE-2023-54263 | drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP | |
| CVE-2023-54264 | fs/sysv: Null check to prevent null-ptr-deref bug | |
| CVE-2023-54274 | RDMA/srpt: Add a check for valid 'mad_agent' pointer | |
| CVE-2023-54275 | wifi: ath11k: Fix memory leak in ath11k_peer_rx_frag_setup | |
| CVE-2023-54276 | nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net | |
| CVE-2023-54273 | xfrm: Fix leak of dev tracker |
Showing top 20 of 244 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
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