CVE-2021-47240
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: fix OOB Read in qrtr_endpoint_post
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds Read in qrtr_endpoint_post. The problem was in wrong _size_ type: if (len != ALIGN(size, 4) + hdrlen) goto err; If size from qrtr_hdr is 4294967293 (0xfffffffd), the result of ALIGN(size, 4) will be 0. In case of len == hdrlen and size == 4294967293 in header this check won't fail and skb_put_data(skb, data + hdrlen, size); will read out of bound from data, which is hdrlen allocated block.
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) |
|---|---|---|---|---|---|
| 194ccc88297ae78d0803adad83c6dcc369787c9e | affected | git | f8111c0d7ed42ede41a3d0d393b104de0730a8a6 | Unavailable | None listed |
| 194ccc88297ae78d0803adad83c6dcc369787c9e | affected | git | 26b8d10703a9be45d6097946b2b4011f7dd2c56f | Unavailable | None listed |
| 194ccc88297ae78d0803adad83c6dcc369787c9e | affected | git | 960b08dd36de1e341e3eb43d1c547513e338f4f8 | Unavailable | None listed |
| 194ccc88297ae78d0803adad83c6dcc369787c9e | affected | git | 19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe | Unavailable | None listed |
| 194ccc88297ae78d0803adad83c6dcc369787c9e | affected | git | ad9d24c9429e2159d1e279dc3a83191ccb4daf1d | 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) |
|---|---|---|---|---|---|
| 4.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.15 | Unavailable | 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 |