Answer in brief
CVE-2026-46024 records a Unknown severity 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.
Answer in brief
CVE-2026-46024 records a Unknown severity 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <9ded62c302c0342efdb5eda3bf6e75720caad0df || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <f101271fcf55d7eacfefd610b51ec65f46ba8118 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <4b2738b93edad661178340239de657d876b73d3d || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <927e4bd5692f2a4901808822981fb2c8d4456548 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <016bc663657366d386993f63eb31072eb45a2b77 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <8f2be7285941a33a9f72579a23b96392f83c758e || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <5199c125d25aeae8615c4fc31652cc0fe624338e | 9ded62c302c0342efdb5eda3bf6e75720caad0df, f101271fcf55d7eacfefd610b51ec65f46ba8118, 4b2738b93edad661178340239de657d876b73d3d, 927e4bd5692f2a4901808822981fb2c8d4456548, 016bc663657366d386993f63eb31072eb45a2b77, 8f2be7285941a33a9f72579a23b96392f83c758e, 5199c125d25aeae8615c4fc31652cc0fe624338e |
| Linux/Linuxgeneric | 2.6.34 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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.
A CVSS score is not reported in the current record. 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.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <9ded62c302c0342efdb5eda3bf6e75720caad0df || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <f101271fcf55d7eacfefd610b51ec65f46ba8118 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <4b2738b93edad661178340239de657d876b73d3d || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <927e4bd5692f2a4901808822981fb2c8d4456548 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <016bc663657366d386993f63eb31072eb45a2b77 || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <8f2be7285941a33a9f72579a23b96392f83c758e || >=4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc <5199c125d25aeae8615c4fc31652cc0fe624338e | 9ded62c302c0342efdb5eda3bf6e75720caad0df, f101271fcf55d7eacfefd610b51ec65f46ba8118, 4b2738b93edad661178340239de657d876b73d3d, 927e4bd5692f2a4901808822981fb2c8d4456548, 016bc663657366d386993f63eb31072eb45a2b77, 8f2be7285941a33a9f72579a23b96392f83c758e, 5199c125d25aeae8615c4fc31652cc0fe624338e |
| Linux/Linuxgeneric | 2.6.34 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 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.