Answer in brief
CVE-2024-35887 records a High severity (CVSS 8.8) vulnerability in ax25: fix use-after-free bugs caused by ax25_ds_del_timer. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 8.8. 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), 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:6.9:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <74204bf9050f7627aead9875fe4e07ba125cb19b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c6a368f9c7af4c14b14d390c2543af8001c9bdb9 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 | 74204bf9050f7627aead9875fe4e07ba125cb19b, c6a368f9c7af4c14b14d390c2543af8001c9bdb9, fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <28f2d36ac52225a13e020c2589833f1816a0cfc6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8a912ef5b7c5d14fb41b9a7935d1df5bb87058bf || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <74204bf9050f7627aead9875fe4e07ba125cb19b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c6a368f9c7af4c14b14d390c2543af8001c9bdb9 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 | 28f2d36ac52225a13e020c2589833f1816a0cfc6, 8a912ef5b7c5d14fb41b9a7935d1df5bb87058bf, 74204bf9050f7627aead9875fe4e07ba125cb19b, c6a368f9c7af4c14b14d390c2543af8001c9bdb9, fd819ad3ecf6f3c232a06b27423ce9ed8c20da89 |
Published upstream
May 19, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 14, 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: ax25: fix use-after-free bugs caused by ax25_ds_del_timer When the ax25 device is detaching, the ax25_dev_device_down() calls ax25_ds_del_timer() to cleanup the slave_timer. When the timer handler is running, the ax25_ds_del_timer() that calls del_timer() in it will return directly. As a result, the use-after-free bugs could happen, one of the scenarios is shown below: (Thread 1) | (Thread 2) | ax25_ds_timeout() ax25_dev_device_down() | ax25_ds_del_timer() | del_timer() | ax25_dev_put() //FREE | | ax25_dev-> //USE In order to mitigate bugs, when the device is detaching, use timer_shutdown_sync() to stop the timer.
Quoted source text, attributed separately from HOL analysis.