Answer in brief
CVE-2026-46024 records a High severity (CVSS 7.5) vulnerability in libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.34:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc6:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.34:rc7:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 2.6.34 | Not reported |
| Linux/Linuxgeneric | >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <9ded62c302c0342efdb5eda3bf6e75720caad0df || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <f101271fcf55d7eacfefd610b51ec65f46ba8118 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <4b2738b93edad661178340239de657d876b73d3d || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <927e4bd5692f2a4901808822981fb2c8d4456548 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <016bc663657366d386993f63eb31072eb45a2b77 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <8f2be7285941a33a9f72579a23b96392f83c758e || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <5199c125d25aeae8615c4fc31652cc0fe624338e | 9ded62c302c0342efdb5eda3bf6e75720caad0df, f101271fcf55d7eacfefd610b51ec65f46ba8118, 4b2738b93edad661178340239de657d876b73d3d, 927e4bd5692f2a4901808822981fb2c8d4456548, 016bc663657366d386993f63eb31072eb45a2b77, 8f2be7285941a33a9f72579a23b96392f83c758e, 5199c125d25aeae8615c4fc31652cc0fe624338e |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() If a message of type CEPH_MSG_AUTH_REPLY contains a zero value for both protocol and result, this is currently not treated as an error. In case of ac->negotiating == true and ac->protocol > 0, this leads to setting ac->protocol = 0 and ac->ops = NULL. Thereafter, the check for ac->protocol != protocol returns false, and init_protocol() is not called. Subsequently, ac->ops->handle_reply() is called, which leads to a null pointer dereference, because ac->ops is still NULL. This patch changes the check for ac->protocol != protocol to !ac->protocol, as this also includes the case when the protocol was set to zero in the message. This causes the message to be treated as containing a bad auth protocol.
Quoted source text, attributed separately from HOL analysis.