CVE-2026-74634
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)
ring-buffer: Prevent subbuf order change when resizing is disabled
In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Prevent subbuf order change when resizing is disabled Because ring_buffer_subbuf_order_set() frees buffer pages, we can't allow it when resizing is disabled. A non-consuming reader is at risk of use-after-free (rb_advance_iter()). Return -EBUSY on resize_disabled, matching ring_buffer_resize() behaviour.
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) |
|---|---|---|---|---|---|
| f9b94daa542a8d2532f0930f01cd9aec2d19621b | affected | git | b45b91db41379ee5fb36c187d6d7c37b725cbe8e | Unavailable | None listed |
| f9b94daa542a8d2532f0930f01cd9aec2d19621b | affected | git | 62978cf6347972c04130e4e841ba404504d92b32 | Unavailable | None listed |
| f9b94daa542a8d2532f0930f01cd9aec2d19621b | affected | git | 7568e9e717e7540bd05bcc007f5d76fcaff3cdff | Unavailable | None listed |
| f9b94daa542a8d2532f0930f01cd9aec2d19621b | affected | git | bf98d7b0d5a99991e47e66cee4eb1d3fa514be97 | 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) |
|---|---|---|---|---|---|
| 6.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.8 | Unavailable | None listed |
| 6.12.104 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.45 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.9 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |