Answer in brief
CVE-2024-56645 records a Unknown severity vulnerability in can: j1939: j1939_session_new(): fix skb reference counting. 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-2024-56645 records a Unknown severity vulnerability in can: j1939: j1939_session_new(): fix skb reference counting. 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 | >=9d71dd0c70099914fcd063135da3c580865e924c <224e606a8d8e8c7db94036272c47a37455667313 || >=9d71dd0c70099914fcd063135da3c580865e924c <b3282c2bebeeb82ceec492ee4972f51ee7a4a132 || >=9d71dd0c70099914fcd063135da3c580865e924c <4199dd78a59896e091d3a7a05a77451aa7fd724d || >=9d71dd0c70099914fcd063135da3c580865e924c <f117cba69cbbd496babb3defcdf440df4fd6fe14 || >=9d71dd0c70099914fcd063135da3c580865e924c <426d94815e12b6bdb9a75af294fbbafb9301601d || >=9d71dd0c70099914fcd063135da3c580865e924c <68fceb143b635cdc59fed3896d5910aff38f345e || >=9d71dd0c70099914fcd063135da3c580865e924c <a8c695005bfe6569acd73d777ca298ddddd66105 | 224e606a8d8e8c7db94036272c47a37455667313, b3282c2bebeeb82ceec492ee4972f51ee7a4a132, 4199dd78a59896e091d3a7a05a77451aa7fd724d, f117cba69cbbd496babb3defcdf440df4fd6fe14, 426d94815e12b6bdb9a75af294fbbafb9301601d, 68fceb143b635cdc59fed3896d5910aff38f345e, a8c695005bfe6569acd73d777ca298ddddd66105 |
| Linux/Linuxgeneric | 5.4 | Not reported |
Published upstream
Dec 27, 2024
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: can: j1939: j1939_session_new(): fix skb reference counting Since j1939_session_skb_queue() does an extra skb_get() for each new skb, do the same for the initial one in j1939_session_new() to avoid refcount underflow. [mkl: clean up commit message]
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 | >=9d71dd0c70099914fcd063135da3c580865e924c <224e606a8d8e8c7db94036272c47a37455667313 || >=9d71dd0c70099914fcd063135da3c580865e924c <b3282c2bebeeb82ceec492ee4972f51ee7a4a132 || >=9d71dd0c70099914fcd063135da3c580865e924c <4199dd78a59896e091d3a7a05a77451aa7fd724d || >=9d71dd0c70099914fcd063135da3c580865e924c <f117cba69cbbd496babb3defcdf440df4fd6fe14 || >=9d71dd0c70099914fcd063135da3c580865e924c <426d94815e12b6bdb9a75af294fbbafb9301601d || >=9d71dd0c70099914fcd063135da3c580865e924c <68fceb143b635cdc59fed3896d5910aff38f345e || >=9d71dd0c70099914fcd063135da3c580865e924c <a8c695005bfe6569acd73d777ca298ddddd66105 | 224e606a8d8e8c7db94036272c47a37455667313, b3282c2bebeeb82ceec492ee4972f51ee7a4a132, 4199dd78a59896e091d3a7a05a77451aa7fd724d, f117cba69cbbd496babb3defcdf440df4fd6fe14, 426d94815e12b6bdb9a75af294fbbafb9301601d, 68fceb143b635cdc59fed3896d5910aff38f345e, a8c695005bfe6569acd73d777ca298ddddd66105 |
| Linux/Linuxgeneric | 5.4 | Not reported |
Published upstream
Dec 27, 2024
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: can: j1939: j1939_session_new(): fix skb reference counting Since j1939_session_skb_queue() does an extra skb_get() for each new skb, do the same for the initial one in j1939_session_new() to avoid refcount underflow. [mkl: clean up commit message]
Quoted source text, attributed separately from HOL analysis.