CVE-2021-47301
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)
igb: Fix use-after-free error during reset
In the Linux kernel, the following vulnerability has been resolved: igb: Fix use-after-free error during reset Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igb_poll() runs while the controller is reset this can lead to the driver try to free a skb that was already freed. (The crash is harder to reproduce with the igb driver, but the same potential problem exists as the code is identical to igc)
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) |
|---|---|---|---|---|---|
| 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0 | affected | git | d7367f781e5a9ca5df9082b15b272b55e76931f8 | Unavailable | None listed |
| 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0 | affected | git | d3ccb18ed5ac3283c7b31ecc685b499e580d5492 | Unavailable | None listed |
| 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0 | affected | git | 88e0720133d42d34851c8721cf5f289a50a8710f | Unavailable | None listed |
| 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0 | affected | git | f153664d8e70c11d0371341613651e1130e20240 | Unavailable | None listed |
| 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0 | affected | git | 8e24c12f2ff6d32fd9f057382f08e748ec97194c | Unavailable | None listed |
| 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0 | affected | git | 7b292608db23ccbbfbfa50cdb155d01725d7a52e | 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) |
|---|---|---|---|---|---|
| 4.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.12 | Unavailable | None listed |
| 4.14.241 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.199 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.136 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.54 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.13.6 | unaffected | semver | Unavailable | 5.13.* | None listed |
| 5.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |