CVE-2023-54277fbdev: udlfb: Fix endpoint check
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected f6db63819db632158647d5bbf4d7d2d90dc1a268 – < 1522dc58bff87af79461b96d90ec122e9e726004
- affected c4fb41bdf4d6ccca850c4af5d707d14a0fb717a7 – < 58ecc165abdaed85447455e6dc396758e8c6f219
- affected 4df1584738f1dc6f0dd854d258bba48591f1ed0e – < 9e12c58a5ece41be72157cef348576b135c9fc72
- affected aaf7dbe07385e0b8deb7237eca2a79926bbc7091 – < c8fdf7feca77cd99e25ef0a1e9e72dfc83add8ef
- affected aaf7dbe07385e0b8deb7237eca2a79926bbc7091 – < e19383e5dee5adbf3d19f3f210f440a88d1b7dde
- affected aaf7dbe07385e0b8deb7237eca2a79926bbc7091 – < ed9de4ed39875706607fb08118a58344ae6c5f42
- affected 895ea8a290ba87850bcaf2ecfcddef75a014fa54
- affected 5.4.192 – < 5.4.244
- affected 5.10.114 – < 5.10.181
- affected 5.15.38 – < 5.15.114
- affected 5.17.6 – < 5.18
- affected 5.18
- unaffected < 5.18
- unaffected 5.4.244 – ≤ 5.4.*
- unaffected 5.10.181 – ≤ 5.10.*
- unaffected 5.15.114 – ≤ 5.15.*
- unaffected 6.1.31 – ≤ 6.1.*
- unaffected 6.3.5 – ≤ 6.3.*
- unaffected 6.4 – ≤ *
References
References6
- https://git.kernel.org/stable/c/1522dc58bff87af79461b96d90ec122e9e726004 (opens in a new tab)
- https://git.kernel.org/stable/c/58ecc165abdaed85447455e6dc396758e8c6f219 (opens in a new tab)
- https://git.kernel.org/stable/c/9e12c58a5ece41be72157cef348576b135c9fc72 (opens in a new tab)
- https://git.kernel.org/stable/c/c8fdf7feca77cd99e25ef0a1e9e72dfc83add8ef (opens in a new tab)
- https://git.kernel.org/stable/c/e19383e5dee5adbf3d19f3f210f440a88d1b7dde (opens in a new tab)
- https://git.kernel.org/stable/c/ed9de4ed39875706607fb08118a58344ae6c5f42 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-60527 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-54277)Record last updated .