{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23031","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.942Z","datePublished":"2026-01-31T11:42:09.276Z","dateUpdated":"2026-05-11T21:58:40.032Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:58:40.032Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak\n\nIn gs_can_open(), the URBs for USB-in transfers are allocated, added to the\nparent->rx_submitted anchor and submitted. In the complete callback\ngs_usb_receive_bulk_callback(), the URB is processed and resubmitted. In\ngs_can_close() the URBs are freed by calling\nusb_kill_anchored_urbs(parent->rx_submitted).\n\nHowever, this does not take into account that the USB framework unanchors\nthe URB before the complete function is called. This means that once an\nin-URB has been completed, it is no longer anchored and is ultimately not\nreleased in gs_can_close().\n\nFix the memory leak by anchoring the URB in the\ngs_usb_receive_bulk_callback() to the parent->rx_submitted anchor."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/usb/gs_usb.c"],"versions":[{"version":"d08e973a77d128b25e01a08c34d89593fdf222da","lessThan":"9c151898cc259a7784be60ba38664f42ede39b31","status":"affected","versionType":"git"},{"version":"d08e973a77d128b25e01a08c34d89593fdf222da","lessThan":"ec5ccc2af9e5b045671f3f604b57512feda8bcc5","status":"affected","versionType":"git"},{"version":"d08e973a77d128b25e01a08c34d89593fdf222da","lessThan":"f905bcfa971edb89e398c98957838d8c6381c0c7","status":"affected","versionType":"git"},{"version":"d08e973a77d128b25e01a08c34d89593fdf222da","lessThan":"08624b7206ddb9148eeffc2384ebda2c47b6d1e9","status":"affected","versionType":"git"},{"version":"d08e973a77d128b25e01a08c34d89593fdf222da","lessThan":"9f669a38ca70839229b7ba0f851820850a2fe1f7","status":"affected","versionType":"git"},{"version":"d08e973a77d128b25e01a08c34d89593fdf222da","lessThan":"7352e1d5932a0e777e39fa4b619801191f57e603","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/net/can/usb/gs_usb.c"],"versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.162","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.122","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.67","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.7","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","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":"3.16","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.12.67"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.18.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/9c151898cc259a7784be60ba38664f42ede39b31"},{"url":"https://git.kernel.org/stable/c/ec5ccc2af9e5b045671f3f604b57512feda8bcc5"},{"url":"https://git.kernel.org/stable/c/f905bcfa971edb89e398c98957838d8c6381c0c7"},{"url":"https://git.kernel.org/stable/c/08624b7206ddb9148eeffc2384ebda2c47b6d1e9"},{"url":"https://git.kernel.org/stable/c/9f669a38ca70839229b7ba0f851820850a2fe1f7"},{"url":"https://git.kernel.org/stable/c/7352e1d5932a0e777e39fa4b619801191f57e603"}],"title":"can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak","x_generator":{"engine":"bippy-1.2.0"}}}}