{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-23138", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-01-11T14:28:41.511Z", "datePublished": "2025-04-16T14:13:17.866Z", "dateUpdated": "2025-05-26T05:19:17.699Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-26T05:19:17.699Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatch_queue: fix pipe accounting mismatch\n\nCurrently, watch_queue_set_size() modifies the pipe buffers charged to\nuser->pipe_bufs without updating the pipe->nr_accounted on the pipe\nitself, due to the if (!pipe_has_watch_queue()) test in\npipe_resize_ring(). This means that when the pipe is ultimately freed,\nwe decrement user->pipe_bufs by something other than what than we had\ncharged to it, potentially leading to an underflow. This in turn can\ncause subsequent too_many_pipe_buffers_soft() tests to fail with -EPERM.\n\nTo remedy this, explicitly account for the pipe usage in\nwatch_queue_set_size() to match the number set via account_pipe_buffers()\n\n(It's unclear why watch_queue_set_size() does not update nr_accounted;\nit may be due to intentional overprovisioning in watch_queue_set_size()?)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/watch_queue.c"], "versions": [{"version": "162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8", "lessThan": "8658c75343ed00e5e154ebbe24335f51ba8db547", "status": "affected", "versionType": "git"}, {"version": "3efbd114b91525bb095b8ae046382197d92126b9", "lessThan": "471c89b7d4f58bd6082f7c1fe14d4ca15c7f1284", "status": "affected", "versionType": "git"}, {"version": "b87a1229d8668fbc78ebd9ca0fc797a76001c60f", "lessThan": "d40e3537265dea9e3c33021874437ff26dc18787", "status": "affected", "versionType": "git"}, {"version": "68e51bdb1194f11d3452525b99c98aff6f837b24", "lessThan": "6dafa27764183738dc5368b669b71e3d0d154f12", "status": "affected", "versionType": "git"}, {"version": "e95aada4cb93d42e25c30a0ef9eb2923d9711d4a", "lessThan": "56ec918e6c86c1536870e4373e91eddd0c44245f", "status": "affected", "versionType": "git"}, {"version": "e95aada4cb93d42e25c30a0ef9eb2923d9711d4a", "lessThan": "2d680b988656bb556c863d8b46d9b9096842bf3d", "status": "affected", "versionType": "git"}, {"version": "e95aada4cb93d42e25c30a0ef9eb2923d9711d4a", "lessThan": "205028ebba838938d3b264dda1d0708fa7fe1ade", "status": "affected", "versionType": "git"}, {"version": "e95aada4cb93d42e25c30a0ef9eb2923d9711d4a", "lessThan": "f13abc1e8e1a3b7455511c4e122750127f6bc9b0", "status": "affected", "versionType": "git"}, {"version": "6fb70694f8d1ac34e45246b0ac988f025e1e5b55", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/watch_queue.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.236", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.180", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.134", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.87", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.23", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.11", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.210", "versionEndExcluding": "5.10.236"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.149", "versionEndExcluding": "5.15.180"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.76", "versionEndExcluding": "6.1.134"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.15", "versionEndExcluding": "6.6.87"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.12.23"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.13.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.14.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8658c75343ed00e5e154ebbe24335f51ba8db547"}, {"url": "https://git.kernel.org/stable/c/471c89b7d4f58bd6082f7c1fe14d4ca15c7f1284"}, {"url": "https://git.kernel.org/stable/c/d40e3537265dea9e3c33021874437ff26dc18787"}, {"url": "https://git.kernel.org/stable/c/6dafa27764183738dc5368b669b71e3d0d154f12"}, {"url": "https://git.kernel.org/stable/c/56ec918e6c86c1536870e4373e91eddd0c44245f"}, {"url": "https://git.kernel.org/stable/c/2d680b988656bb556c863d8b46d9b9096842bf3d"}, {"url": "https://git.kernel.org/stable/c/205028ebba838938d3b264dda1d0708fa7fe1ade"}, {"url": "https://git.kernel.org/stable/c/f13abc1e8e1a3b7455511c4e122750127f6bc9b0"}], "title": "watch_queue: fix pipe accounting mismatch", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatch_queue: fix pipe accounting mismatch\n\nCurrently, watch_queue_set_size() modifies the pipe buffers charged to\nuser->pipe_bufs without updating the pipe->nr_accounted on the pipe\nitself, due to the if (!pipe_has_watch_queue()) test in\npipe_resize_ring(). This means that when the pipe is ultimately freed,\nwe decrement user->pipe_bufs by something other than what than we had\ncharged to it, potentially leading to an underflow. This in turn can\ncause subsequent too_many_pipe_buffers_soft() tests to fail with -EPERM.\n\nTo remedy this, explicitly account for the pipe usage in\nwatch_queue_set_size() to match the number set via account_pipe_buffers()\n\n(It's unclear why watch_queue_set_size() does not update nr_accounted;\nit may be due to intentional overprovisioning in watch_queue_set_size()?)"}], "id": "CVE-2025-23138", "lastModified": "2025-04-17T20:22:16.240", "metrics": {}, "published": "2025-04-16T15:16:08.163", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/205028ebba838938d3b264dda1d0708fa7fe1ade"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2d680b988656bb556c863d8b46d9b9096842bf3d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/471c89b7d4f58bd6082f7c1fe14d4ca15c7f1284"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/56ec918e6c86c1536870e4373e91eddd0c44245f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6dafa27764183738dc5368b669b71e3d0d154f12"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8658c75343ed00e5e154ebbe24335f51ba8db547"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d40e3537265dea9e3c33021874437ff26dc18787"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f13abc1e8e1a3b7455511c4e122750127f6bc9b0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: watch_queue: fix pipe accounting mismatch", "id": "2360211", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360211"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-191", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwatch_queue: fix pipe accounting mismatch\nCurrently, watch_queue_set_size() modifies the pipe buffers charged to\nuser->pipe_bufs without updating the pipe->nr_accounted on the pipe\nitself, due to the if (!pipe_has_watch_queue()) test in\npipe_resize_ring(). This means that when the pipe is ultimately freed,\nwe decrement user->pipe_bufs by something other than what than we had\ncharged to it, potentially leading to an underflow. This in turn can\ncause subsequent too_many_pipe_buffers_soft() tests to fail with -EPERM.\nTo remedy this, explicitly account for the pipe usage in\nwatch_queue_set_size() to match the number set via account_pipe_buffers()\n(It's unclear why watch_queue_set_size() does not update nr_accounted;\nit may be due to intentional overprovisioning in watch_queue_set_size()?)"], "name": "CVE-2025-23138", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-23138\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-23138\nhttps://lore.kernel.org/linux-cve-announce/2025041634-CVE-2025-23138-a5c8@gregkh/T"], "threat_severity": "Moderate"}