rtase: fix double free of multi-frag skb on DMA map failure
In the Linux kernel, the following vulnerability has been resolved: rtase: fix double free of multi-frag skb on DMA map failure In rtase_start_xmit(), when the head buffer DMA mapping fails after rtase_xmit_frags() has mapped all fragments, the error path clears the fragment descriptors with rtase_tx_clear_range(), which frees the skb through the last-frag slot and accounts tx_dropped. Control then falls through to the common error label, which frees the same skb a second time and counts it again. Return right after clearing the fragments when the skb owns frags; the no-frag case still drops through and frees the head skb once.
CVE-2026-74545
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:CVE-2026-74545
Kernel
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 6.12.103
Source reference:
/affected/1/ranges6.18.44Source reference:
/affected/1/ranges7.1.8Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "d6e882b89fdf80be0ab4f914ec10f75215e49495"
},
{
"fixed": "4f09172aff5f73a5e914f4fbc0d00a1c2ea9f7cb"
},
{
"fixed": "db986098f30881fafcc752800aa3b13fd289c922"
},
{
"fixed": "de691dc3227b061c4d0beba9f0128fe1ff33dd68"
},
{
"fixed": "6fb7b769d6ed6d1d2e02af4a80e57a2477f35086"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74545.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.12.0"
},
{
"fixed": "6.12.103"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.44"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
"fixed": "7.1.8"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74545.json"
}
}
]- Related CVEs
- CVE-2026-74545
Source reference:
/id
Publisher severity
No explicit severity was provided.
- Event
- #50827 · Revision 1
- Added to Heist Feed
- Publisher date