Answer in brief
CVE-2024-26739 records a Unknown severity vulnerability in net/sched: act_mirred: don't override retval if we already lost the skb. 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-2024-26739 records a Unknown severity vulnerability in net/sched: act_mirred: don't override retval if we already lost the skb. 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 | >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5 || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <e873e8f7d03a2ee5b77fb1a305c782fed98e2754 || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <28cdbbd38a4413b8eff53399b3f872fd4e80db9d || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <f4e294bbdca8ac8757db436fc82214f3882fc7e7 || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210 | 0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd, 9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5, e873e8f7d03a2ee5b77fb1a305c782fed98e2754, 28cdbbd38a4413b8eff53399b3f872fd4e80db9d, f4e294bbdca8ac8757db436fc82214f3882fc7e7, 166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210 |
| Linux/Linuxgeneric | 4.19 | Not reported |
Published upstream
Apr 3, 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: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.
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 | >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5 || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <e873e8f7d03a2ee5b77fb1a305c782fed98e2754 || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <28cdbbd38a4413b8eff53399b3f872fd4e80db9d || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <f4e294bbdca8ac8757db436fc82214f3882fc7e7 || >=e5cf1baf92cb785b90390db1c624948e70c8b8bd <166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210 | 0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd, 9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5, e873e8f7d03a2ee5b77fb1a305c782fed98e2754, 28cdbbd38a4413b8eff53399b3f872fd4e80db9d, f4e294bbdca8ac8757db436fc82214f3882fc7e7, 166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210 |
| Linux/Linuxgeneric | 4.19 | Not reported |
Published upstream
Apr 3, 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: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.
Quoted source text, attributed separately from HOL analysis.