CVE-2025-23138
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
watch_queue: fix pipe accounting mismatch
In the Linux kernel, the following vulnerability has been resolved: watch_queue: fix pipe accounting mismatch Currently, watch_queue_set_size() modifies the pipe buffers charged to user->pipe_bufs without updating the pipe->nr_accounted on the pipe itself, due to the if (!pipe_has_watch_queue()) test in pipe_resize_ring(). This means that when the pipe is ultimately freed, we decrement user->pipe_bufs by something other than what than we had charged to it, potentially leading to an underflow. This in turn can cause subsequent too_many_pipe_buffers_soft() tests to fail with -EPERM. To remedy this, explicitly account for the pipe usage in watch_queue_set_size() to match the number set via account_pipe_buffers() (It's unclear why watch_queue_set_size() does not update nr_accounted; it may be due to intentional overprovisioning in watch_queue_set_size()?)
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) |
|---|---|---|---|---|---|
| 162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8 | affected | git | 8658c75343ed00e5e154ebbe24335f51ba8db547 | Unavailable | None listed |
| 3efbd114b91525bb095b8ae046382197d92126b9 | affected | git | 471c89b7d4f58bd6082f7c1fe14d4ca15c7f1284 | Unavailable | None listed |
| b87a1229d8668fbc78ebd9ca0fc797a76001c60f | affected | git | d40e3537265dea9e3c33021874437ff26dc18787 | Unavailable | None listed |
| 68e51bdb1194f11d3452525b99c98aff6f837b24 | affected | git | 6dafa27764183738dc5368b669b71e3d0d154f12 | Unavailable | None listed |
| e95aada4cb93d42e25c30a0ef9eb2923d9711d4a | affected | git | 56ec918e6c86c1536870e4373e91eddd0c44245f | Unavailable | None listed |
| e95aada4cb93d42e25c30a0ef9eb2923d9711d4a | affected | git | 2d680b988656bb556c863d8b46d9b9096842bf3d | Unavailable | None listed |
| e95aada4cb93d42e25c30a0ef9eb2923d9711d4a | affected | git | 205028ebba838938d3b264dda1d0708fa7fe1ade | Unavailable | None listed |
| e95aada4cb93d42e25c30a0ef9eb2923d9711d4a | affected | git | f13abc1e8e1a3b7455511c4e122750127f6bc9b0 | Unavailable | None listed |
| 6fb70694f8d1ac34e45246b0ac988f025e1e5b55 | affected | git | Unavailable | Unavailable | None listed |
| 5.10.210 | affected | semver | 5.10.236 | Unavailable | None listed |
| 5.15.149 | affected | semver | 5.15.180 | Unavailable | None listed |
| 6.1.76 | affected | semver | 6.1.134 | Unavailable | None listed |
| 6.6.15 | affected | semver | 6.6.87 | Unavailable | None listed |
| 6.7.3 | affected | semver | 6.8 | 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 |
| 5.10.236 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.180 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.134 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.87 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.23 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.11 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14.2 | unaffected | semver | Unavailable | 6.14.* | None listed |
| 6.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |