CVE-2026-74401
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
dlm: fix add msg handle in send_queue ordered
In the Linux kernel, the following vulnerability has been resolved: dlm: fix add msg handle in send_queue ordered In a benchmark scenario triggering a lot of requests that triggers a lot of DLM messages on the network it can be that the mh->seq is not ordered according the oldest seq number. This ordering is required by dlm_receive_ack as "before(mh->seq, seq)" will stop to check for older sequence numbers that are ordered in the tail of "node->send_queue". The side effects of not having it correct ordered regarding "before(mh->seq, seq)" are refcounting issues and use-after free. I only was able to reproduce this issue in a experimental DLM branch and a user space DLM benchmark that uses io_uring. After changing this I don't experienced any refcounting with the sending buffer issues anymore.
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) |
|---|---|---|---|---|---|
| 489d8e559c6596eb08e16447d9830bc39afbe54e | affected | git | ae9e534e502a0f48c12baf83608c5de0ff0eab11 | Unavailable | None listed |
| 489d8e559c6596eb08e16447d9830bc39afbe54e | affected | git | 6369619f1b665f12d8c99cc6ff733c64eb08b22e | Unavailable | None listed |
| 489d8e559c6596eb08e16447d9830bc39afbe54e | affected | git | 712714f818d83373847874ab0f8e426be79296cf | Unavailable | None listed |
| 489d8e559c6596eb08e16447d9830bc39afbe54e | affected | git | 4d45250b1d22960f86d83245be188b16e456218b | Unavailable | None listed |
| 489d8e559c6596eb08e16447d9830bc39afbe54e | affected | git | d2248cb70c070f8f04762872772e155b59016f17 | 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) |
|---|---|---|---|---|---|
| 5.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.14 | Unavailable | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.97 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.40 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.5 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |