CVE-2021-47235
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: ethernet: fix potential use-after-free in ec_bhf_remove
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: fix potential use-after-free in ec_bhf_remove static void ec_bhf_remove(struct pci_dev *dev) { ... struct ec_bhf_priv *priv = netdev_priv(net_dev); unregister_netdev(net_dev); free_netdev(net_dev); pci_iounmap(dev, priv->dma_io); pci_iounmap(dev, priv->io); ... } priv is netdev private data, but it is used after free_netdev(). It can cause use-after-free when accessing priv pointer. So, fix it by moving free_netdev() after pci_iounmap() calls.
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) |
|---|---|---|---|---|---|
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | db2bc3cfd2bc01621014d4f17cdfc74611f339c8 | Unavailable | None listed |
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | 1cafc540b7bf1b6a5a77dc000205fe337ef6eba6 | Unavailable | None listed |
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | b1ad283755095a4b9d1431aeb357d7df1a33d3bb | Unavailable | None listed |
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | 0260916843cc74f3906acf8b6f256693e01530a2 | Unavailable | None listed |
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | 19f88ca68ccf8771276a606765239b167654f84a | Unavailable | None listed |
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | 95deeb29d831e2fae608439e243e7a520611e7ea | Unavailable | None listed |
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | d11d79e52ba080ee567cb7d7eb42a5ade60a8130 | Unavailable | None listed |
| 6af55ff52b02d492d45db88df3e461fa51a6f753 | affected | git | 9cca0c2d70149160407bda9a9446ce0c29b6e6c6 | 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) |
|---|---|---|---|---|---|
| 3.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.15 | 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 |