CVE-2025-39847
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ppp: fix memory leak in pad_compress_skb
In the Linux kernel, the following vulnerability has been resolved: ppp: fix memory leak in pad_compress_skb If alloc_skb() fails in pad_compress_skb(), it returns NULL without releasing the old skb. The caller does: skb = pad_compress_skb(ppp, skb); if (!skb) goto drop; drop: kfree_skb(skb); When pad_compress_skb() returns NULL, the reference to the old skb is lost and kfree_skb(skb) ends up doing nothing, leading to a memory leak. Align pad_compress_skb() semantics with realloc(): only free the old skb if allocation and compression succeed. At the call site, use the new_skb variable so the original skb is not lost when pad_compress_skb() fails.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 9ca6a040f76c0b149293e430dabab446f3fc8ab7 | Unavailable | None listed |
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 87a35a36742df328d0badf4fbc2e56061c15846c | Unavailable | None listed |
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 0b21e9cd4559102da798bdcba453b64ecd7be7ee | Unavailable | None listed |
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 1d8b354eafb8876d8bdb1bef69c7d2438aacfbe8 | Unavailable | None listed |
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 85c1c86a67e09143aa464e9bf09c397816772348 | Unavailable | None listed |
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 631fc8ab5beb9e0ec8651fb9875b9a968e7b4ae4 | Unavailable | None listed |
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 33a5bac5f14772730d2caf632ae97b6c2ee95044 | Unavailable | None listed |
| b3f9b92a6ec1a9a5e4b4b36e484f2f62cc73277c | affected | git | 4844123fe0b853a4982c02666cb3fd863d701d50 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.15 | Unavailable | None listed |
| 5.4.299 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.243 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.192 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.151 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.105 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.46 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.16.6 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |