- 9.8CriticalCVSS base score
- 0.72%Exploitation in 30 daysEPSS · top 46% 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: drbd: reject data replies with an out-of-range payload size recv_dless_read() receives a P_DATA_REPLY from a peer into the bio of an outstanding read request. The peer-supplied payload length reaches it as the signed int data_size, and two peer-controlled inputs can make it negative. With a negotiated data-integrity-alg the digest length is subtracted first, so a reply whose payload is smaller than the digest underflows data_size. With no integrity algorithm (the default) data_size is assigned from the unsigned h95/h100 wire length and drbdd() never bounds it for a payload-carrying command, so a length above INT_MAX casts it negative; this path needs no non-default feature. The bio receive loop then computes expect = min_t(int, data_size, bv_len), which is negative, and drbd_recv_all_warn(mapped, expect) receives with a size_t of SIZE_MAX into the first mapped page. The sibling receive path read_in_block() is not affected: it uses an unsigned size and rejects it against DRBD_MAX_BIO_SIZE before receiving. Reject a data reply whose size is negative after the optional digest subtraction, covering both triggers. Impact: a malicious or man-in-the-middle DRBD peer copies attacker-chosen bytes past a bio page in the receiver, corrupting kernel memory. A node that reads from its peer (a diskless node, or read-balancing to the peer) is exposed in the default configuration; data-integrity-alg is not required.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 months later
· 2 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.72% · top 46% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < bca33f5442c3094511719d9db792ce3165d87e76
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < 741a682535deffe9ab7e5c89caf83571efbc9dd9
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < f14e87d7b166490bceb9603b39310e51595d05b9
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < f16866c62656865854106b79bcf6e4ca97a51a92
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < 5f59a8142000f0b8f75c432209ead73c424a745d
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < 38cc4867540ae8beedfe41a1a1a6ed37052c77d6
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < 648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99
- affected b411b3637fa71fce9cf2acf0639009500f5892fe – < bd910a7660d280595ef94cb6d193951d855d330f
- affected 2.6.33
- unaffected < 2.6.33
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/bca33f5442c3094511719d9db792ce3165d87e76 (opens in a new tab)
- https://git.kernel.org/stable/c/741a682535deffe9ab7e5c89caf83571efbc9dd9 (opens in a new tab)
- https://git.kernel.org/stable/c/f14e87d7b166490bceb9603b39310e51595d05b9 (opens in a new tab)
- https://git.kernel.org/stable/c/f16866c62656865854106b79bcf6e4ca97a51a92 (opens in a new tab)
- https://git.kernel.org/stable/c/5f59a8142000f0b8f75c432209ead73c424a745d (opens in a new tab)
- https://git.kernel.org/stable/c/38cc4867540ae8beedfe41a1a1a6ed37052c77d6 (opens in a new tab)
- https://git.kernel.org/stable/c/648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99 (opens in a new tab)
- https://git.kernel.org/stable/c/bd910a7660d280595ef94cb6d193951d855d330f (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-2026-59113 (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-2026-72014)Record last updated .