CVE-2026-74459can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 93% 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: can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure es58x_read_bulk_callback() resubmits the RX URB after processing a received packet. If the resubmit succeeds, the URB remains anchored and will be handled by the normal RX path or by teardown. However, if usb_submit_urb() fails, the callback unanchors the URB and then returns directly. This skips the existing free_urb path, so the coherent transfer buffer allocated with usb_alloc_coherent() is not released. Reuse the existing free_urb path after a resubmit failure so that the RX coherent buffer is freed before leaving the callback.
Timeline
ID reserved
By Linux
Published
- 4 days later
· 4 days 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: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 7a0171b4921ad443fee5ed4fcb9d99fa4776edac – < c7ddf119544eea2d8409e12471c3f9f36ca02e3f
- affected 2185ea6e4ebcb61d1224dc7d187c59723cb5ad59 – < 21da1a374769751546cc131e58a4d8bd968f57b2
- affected f6e90c113c92e83fc0963d5e60e16b0e8a268981 – < 0ef136ba052101243ba117a1aca6f4a4c3a81142
- affected b878444519fa03a3edd287d1963cf79ef78be2f1 – < b85e5c310382803d27adf6fe6554d4208bc8951c
- affected 18eee279e9b5bff0db1aca9475ae4bc12804f05c – < c311f17c261fd375ddf5755f2ebe1f022c19c5b0
- affected 5eaad4f768266f1f17e01232ffe2ef009f8129b7 – < 19c6c8c6cd5dd14fab5fcd744584812a57cbb78d
- affected 5eaad4f768266f1f17e01232ffe2ef009f8129b7 – < 7a0cf2b2497c757c3cb1286eddf2986abb0d387b
- affected b8f9ca88253574638bcff38900a4c28d570b1919
- affected 5.15.203 – < 5.15.216
- affected 6.1.167 – < 6.1.183
- affected 6.6.130 – < 6.6.151
- affected 6.12.77 – < 6.12.103
- affected 6.18.17 – < 6.18.44
- affected 6.19.7 – < 6.20
- affected 7.0
- unaffected < 7.0
- unaffected 5.15.216 – ≤ 5.15.*
- unaffected 6.1.183 – ≤ 6.1.*
- unaffected 6.6.151 – ≤ 6.6.*
- unaffected 6.12.103 – ≤ 6.12.*
- unaffected 6.18.44 – ≤ 6.18.*
- unaffected 7.1.8 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References7
- https://git.kernel.org/stable/c/c7ddf119544eea2d8409e12471c3f9f36ca02e3f (opens in a new tab)
- https://git.kernel.org/stable/c/21da1a374769751546cc131e58a4d8bd968f57b2 (opens in a new tab)
- https://git.kernel.org/stable/c/0ef136ba052101243ba117a1aca6f4a4c3a81142 (opens in a new tab)
- https://git.kernel.org/stable/c/b85e5c310382803d27adf6fe6554d4208bc8951c (opens in a new tab)
- https://git.kernel.org/stable/c/c311f17c261fd375ddf5755f2ebe1f022c19c5b0 (opens in a new tab)
- https://git.kernel.org/stable/c/19c6c8c6cd5dd14fab5fcd744584812a57cbb78d (opens in a new tab)
- https://git.kernel.org/stable/c/7a0cf2b2497c757c3cb1286eddf2986abb0d387b (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-2026-59652 (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-2026-74459)Record last updated .