CVE-2021-47236
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: cdc_eem: fix tx fixup skb leak
In the Linux kernel, the following vulnerability has been resolved: net: cdc_eem: fix tx fixup skb leak when usbnet transmit a skb, eem fixup it in eem_tx_fixup(), if skb_copy_expand() failed, it return NULL, usbnet_start_xmit() will have no chance to free original skb. fix it by free orginal skb in eem_tx_fixup() first, then check skb clone status, if failed, return NULL to usbnet.
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) |
|---|---|---|---|---|---|
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | f12554b0ff639e74612cc01b3b4a049e098d2d65 | Unavailable | None listed |
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | 14184ec5c958b589ba934da7363a2877879204df | Unavailable | None listed |
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | 1bcacd6088d61c0ac6a990d87975600a81f3247e | Unavailable | None listed |
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | f4e6a7f19c82f39b1803e91c54718f0d7143767d | Unavailable | None listed |
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | 81de2ed06df8b5451e050fe6a318af3263dbff3f | Unavailable | None listed |
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | 05b2b9f7d24b5663d9b47427fe1555bdafd3ea02 | Unavailable | None listed |
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | b4f7a9fc9d094c0c4a66f2ad7c37b1dbe9e78f88 | Unavailable | None listed |
| 9f722c0978b04acba209f8ca1896ad05814bc3a3 | affected | git | c3b26fdf1b32f91c7a3bc743384b4a298ab53ad7 | 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) |
|---|---|---|---|---|---|
| 2.6.30 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.30 | Unavailable | None listed |
| 4.4.274 | unaffected | semver | Unavailable | 4.4.* | None listed |
| 4.9.274 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.238 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.196 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.128 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.46 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.12.13 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |