{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54277","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-30T12:06:44.524Z","datePublished":"2025-12-30T12:16:05.690Z","dateUpdated":"2026-05-11T19:58:51.801Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:58:51.801Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: udlfb: Fix endpoint check\n\nThe syzbot fuzzer detected a problem in the udlfb driver, caused by an\nendpoint not having the expected type:\n\nusb 1-1: Read EDID byte 0 failed: -71\nusb 1-1: Unable to get valid EDID from device/display\n------------[ cut here ]------------\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 9 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880\ndrivers/usb/core/urb.c:504\nModules linked in:\nCPU: 0 PID: 9 Comm: kworker/0:1 Not tainted\n6.4.0-rc1-syzkaller-00016-ga4422ff22142 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google\n04/28/2023\nWorkqueue: usb_hub_wq hub_event\nRIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\n...\nCall Trace:\n <TASK>\n dlfb_submit_urb+0x92/0x180 drivers/video/fbdev/udlfb.c:1980\n dlfb_set_video_mode+0x21f0/0x2950 drivers/video/fbdev/udlfb.c:315\n dlfb_ops_set_par+0x2a7/0x8d0 drivers/video/fbdev/udlfb.c:1111\n dlfb_usb_probe+0x149a/0x2710 drivers/video/fbdev/udlfb.c:1743\n\nThe current approach for this issue failed to catch the problem\nbecause it only checks for the existence of a bulk-OUT endpoint; it\ndoesn't check whether this endpoint is the one that the driver will\nactually use.\n\nWe can fix the problem by instead checking that the endpoint used by\nthe driver does exist and is bulk-OUT."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/udlfb.c"],"versions":[{"version":"f6db63819db632158647d5bbf4d7d2d90dc1a268","lessThan":"1522dc58bff87af79461b96d90ec122e9e726004","status":"affected","versionType":"git"},{"version":"c4fb41bdf4d6ccca850c4af5d707d14a0fb717a7","lessThan":"58ecc165abdaed85447455e6dc396758e8c6f219","status":"affected","versionType":"git"},{"version":"4df1584738f1dc6f0dd854d258bba48591f1ed0e","lessThan":"9e12c58a5ece41be72157cef348576b135c9fc72","status":"affected","versionType":"git"},{"version":"aaf7dbe07385e0b8deb7237eca2a79926bbc7091","lessThan":"c8fdf7feca77cd99e25ef0a1e9e72dfc83add8ef","status":"affected","versionType":"git"},{"version":"aaf7dbe07385e0b8deb7237eca2a79926bbc7091","lessThan":"e19383e5dee5adbf3d19f3f210f440a88d1b7dde","status":"affected","versionType":"git"},{"version":"aaf7dbe07385e0b8deb7237eca2a79926bbc7091","lessThan":"ed9de4ed39875706607fb08118a58344ae6c5f42","status":"affected","versionType":"git"},{"version":"895ea8a290ba87850bcaf2ecfcddef75a014fa54","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/video/fbdev/udlfb.c"],"versions":[{"version":"5.18","status":"affected"},{"version":"0","lessThan":"5.18","status":"unaffected","versionType":"semver"},{"version":"5.4.244","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.181","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.114","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.31","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.3.5","lessThanOrEqual":"6.3.*","status":"unaffected","versionType":"semver"},{"version":"6.4","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.192","versionEndExcluding":"5.4.244"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.114","versionEndExcluding":"5.10.181"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.38","versionEndExcluding":"5.15.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.1.31"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.3.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17.6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1522dc58bff87af79461b96d90ec122e9e726004"},{"url":"https://git.kernel.org/stable/c/58ecc165abdaed85447455e6dc396758e8c6f219"},{"url":"https://git.kernel.org/stable/c/9e12c58a5ece41be72157cef348576b135c9fc72"},{"url":"https://git.kernel.org/stable/c/c8fdf7feca77cd99e25ef0a1e9e72dfc83add8ef"},{"url":"https://git.kernel.org/stable/c/e19383e5dee5adbf3d19f3f210f440a88d1b7dde"},{"url":"https://git.kernel.org/stable/c/ed9de4ed39875706607fb08118a58344ae6c5f42"}],"title":"fbdev: udlfb: Fix endpoint check","x_generator":{"engine":"bippy-1.2.0"}}}}