CVE-2026-99157scsi: bsg: Pass reply_len to bsg_setup_queue() to fit UFS ARPMB replies
- —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: scsi: bsg: Pass reply_len to bsg_setup_queue() to fit UFS ARPMB replies bsg-lib allocates a 96-byte (SCSI_SENSE_BUFFERSIZE) reply buffer per job, but struct ufs_rpmb_reply is 104 bytes: a 40-byte struct ufs_bsg_reply followed by a 64-byte EHS. When an Advanced RPMB command returns an EHS, ufshcd_advanced_rpmb_req_handler() copies it right after the 40-byte header and writes 8 bytes past the end of the buffer. Let each BSG transport pass its reply buffer size to bsg_setup_queue() and have ufs_bsg request sizeof(struct ufs_rpmb_reply), so the full reply reaches user space. Other transports keep SCSI_SENSE_BUFFERSIZE.
Timeline
ID reserved
By Linux
- 33 days later
· 33 days later
Published
- 2 days later
· 2 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 (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 6ff265fc5ef660499e0edc4641647e99eed3f519 – < 913a1876fbe9a168030013b9e6cb2746fe41fff4
- affected 6ff265fc5ef660499e0edc4641647e99eed3f519 – < bfb0582708b3432919a8baaa3a65de5fdb1490ea
- affected 6ff265fc5ef660499e0edc4641647e99eed3f519 – < 2effbe746452c108188f85a6951f2b0b65653840
- affected 6ff265fc5ef660499e0edc4641647e99eed3f519 – < 7a755f6d47b811d3abd93c1642ce5e63894540b8
- affected 6ff265fc5ef660499e0edc4641647e99eed3f519 – < ec6b083915e8146e147314a5f4f1285d07b57bfc
- affected 6.3
- unaffected < 6.3
- unaffected 6.6.161 – ≤ 6.6.*
- unaffected 6.12.115 – ≤ 6.12.*
- unaffected 6.18.59 – ≤ 6.18.*
- unaffected 7.2.13 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/913a1876fbe9a168030013b9e6cb2746fe41fff4 (opens in a new tab)
- https://git.kernel.org/stable/c/bfb0582708b3432919a8baaa3a65de5fdb1490ea (opens in a new tab)
- https://git.kernel.org/stable/c/2effbe746452c108188f85a6951f2b0b65653840 (opens in a new tab)
- https://git.kernel.org/stable/c/7a755f6d47b811d3abd93c1642ce5e63894540b8 (opens in a new tab)
- https://git.kernel.org/stable/c/ec6b083915e8146e147314a5f4f1285d07b57bfc (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-2026-111909 (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-2026-99157)Record last updated .