CVE-2021-46973
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: qrtr: Avoid potential use after free in MHI send
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Avoid potential use after free in MHI send It is possible that the MHI ul_callback will be invoked immediately following the queueing of the skb for transmission, leading to the callback decrementing the refcount of the associated sk and freeing the skb. As such the dereference of skb and the increment of the sk refcount must happen before the skb is queued, to avoid the skb to be used after free and potentially the sk to drop its last refcount..
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) |
|---|---|---|---|---|---|
| 6e728f321393b1fce9e1c2c3e55f9f7c15991321 | affected | git | 48ec949ac979b4b42d740f67b6177797af834f80 | Unavailable | None listed |
| 6e728f321393b1fce9e1c2c3e55f9f7c15991321 | affected | git | ea474054c2cc6e1284604b21361f475c7cc8c0a0 | Unavailable | None listed |
| 6e728f321393b1fce9e1c2c3e55f9f7c15991321 | affected | git | 03c649dee8b1eb5600212a249542a70f47a5ab40 | Unavailable | None listed |
| 6e728f321393b1fce9e1c2c3e55f9f7c15991321 | affected | git | 47a017f33943278570c072bc71681809b2567b3a | 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) |
|---|---|---|---|---|---|
| 5.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.8 | Unavailable | None listed |
| 5.10.35 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.11.19 | unaffected | semver | Unavailable | 5.11.* | None listed |
| 5.12.2 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |