CVE-2026-72014 Affecting kernel-uek-debug-modules-extra package, versions <0:6.12.0-206.104.3.3.el10uek
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published5 Sept 2026
- disclosed15 Aug 2026
Introduced: 15 Aug 2026
NewCVE-2026-72014 (opens in a new tab)How to fix?
Upgrade Oracle:10 kernel-uek-debug-modules-extra to version 0:6.12.0-206.104.3.3.el10uek or higher.
This issue was patched in ELSA-2026-500248.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug-modules-extra package and not the kernel-uek-debug-modules-extra package as distributed by Oracle.
See How to fix? for Oracle:10 relevant fixed versions and status.
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.
References
- https://linux.oracle.com/cve/CVE-2026-72014.html
- https://linux.oracle.com/errata/ELSA-2026-500248.html
- https://linux.oracle.com/errata/ELSA-2026-500249.html
- https://git.kernel.org/stable/c/38cc4867540ae8beedfe41a1a1a6ed37052c77d6
- https://git.kernel.org/stable/c/5f59a8142000f0b8f75c432209ead73c424a745d
- https://git.kernel.org/stable/c/648d4317326e6aa3f8c05cbf0fd14cc2eba6ca99
- https://git.kernel.org/stable/c/741a682535deffe9ab7e5c89caf83571efbc9dd9
- https://git.kernel.org/stable/c/bca33f5442c3094511719d9db792ce3165d87e76
- https://git.kernel.org/stable/c/bd910a7660d280595ef94cb6d193951d855d330f
- https://git.kernel.org/stable/c/f14e87d7b166490bceb9603b39310e51595d05b9
- https://git.kernel.org/stable/c/f16866c62656865854106b79bcf6e4ca97a51a92