{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31642", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.127Z", "datePublished": "2026-04-24T14:44:56.888Z", "dateUpdated": "2026-04-24T14:44:56.888Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-24T14:44:56.888Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix call removal to use RCU safe deletion\n\nFix rxrpc call removal from the rxnet->calls list to use list_del_rcu()\nrather than list_del_init() to prevent stuffing up reading\n/proc/net/rxrpc/calls from potentially getting into an infinite loop.\n\nThis, however, means that list_empty() no longer works on an entry that's\nbeen deleted from the list, making it harder to detect prior deletion. Fix\nthis by:\n\nFirstly, make rxrpc_destroy_all_calls() only dump the first ten calls that\nare unexpectedly still on the list. Limiting the number of steps means\nthere's no need to call cond_resched() or to remove calls from the list\nhere, thereby eliminating the need for rxrpc_put_call() to check for that.\n\nrxrpc_put_call() can then be fixed to unconditionally delete the call from\nthe list as it is the only place that the deletion occurs."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/trace/events/rxrpc.h", "net/rxrpc/call_object.c"], "versions": [{"version": "2baec2c3f854d1f79c7bb28386484e144e864a14", "lessThan": "93fc15be44a35b8e3c58d0238ac0d9b7c53465ff", "status": "affected", "versionType": "git"}, {"version": "2baec2c3f854d1f79c7bb28386484e144e864a14", "lessThan": "c63abf25203b50243fe228090526f9dbf37727bd", "status": "affected", "versionType": "git"}, {"version": "2baec2c3f854d1f79c7bb28386484e144e864a14", "lessThan": "3be718f659683ad89fad6f1eb66bee99727cae64", "status": "affected", "versionType": "git"}, {"version": "2baec2c3f854d1f79c7bb28386484e144e864a14", "lessThan": "ac5f54691be06a32246179d41be2d73598036deb", "status": "affected", "versionType": "git"}, {"version": "2baec2c3f854d1f79c7bb28386484e144e864a14", "lessThan": "146d4ab94cf129ee06cd467cb5c71368a6b5bad6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["include/trace/events/rxrpc.h", "net/rxrpc/call_object.c"], "versions": [{"version": "4.13", "status": "affected"}, {"version": "0", "lessThan": "4.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.135", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.82", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.23", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.13", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "4.13", "versionEndExcluding": "6.6.135"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.12.82"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.18.23"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "6.19.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/93fc15be44a35b8e3c58d0238ac0d9b7c53465ff"}, {"url": "https://git.kernel.org/stable/c/c63abf25203b50243fe228090526f9dbf37727bd"}, {"url": "https://git.kernel.org/stable/c/3be718f659683ad89fad6f1eb66bee99727cae64"}, {"url": "https://git.kernel.org/stable/c/ac5f54691be06a32246179d41be2d73598036deb"}, {"url": "https://git.kernel.org/stable/c/146d4ab94cf129ee06cd467cb5c71368a6b5bad6"}], "title": "rxrpc: Fix call removal to use RCU safe deletion", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix call removal to use RCU safe deletion\n\nFix rxrpc call removal from the rxnet->calls list to use list_del_rcu()\nrather than list_del_init() to prevent stuffing up reading\n/proc/net/rxrpc/calls from potentially getting into an infinite loop.\n\nThis, however, means that list_empty() no longer works on an entry that's\nbeen deleted from the list, making it harder to detect prior deletion. Fix\nthis by:\n\nFirstly, make rxrpc_destroy_all_calls() only dump the first ten calls that\nare unexpectedly still on the list. Limiting the number of steps means\nthere's no need to call cond_resched() or to remove calls from the list\nhere, thereby eliminating the need for rxrpc_put_call() to check for that.\n\nrxrpc_put_call() can then be fixed to unconditionally delete the call from\nthe list as it is the only place that the deletion occurs."}], "id": "CVE-2026-31642", "lastModified": "2026-04-24T17:51:40.810", "metrics": {}, "published": "2026-04-24T15:16:43.567", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/146d4ab94cf129ee06cd467cb5c71368a6b5bad6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3be718f659683ad89fad6f1eb66bee99727cae64"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/93fc15be44a35b8e3c58d0238ac0d9b7c53465ff"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ac5f54691be06a32246179d41be2d73598036deb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c63abf25203b50243fe228090526f9dbf37727bd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: rxrpc: Fix call removal to use RCU safe deletion", "id": "2461572", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461572"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-821", "details": ["A flaw was found in the Linux kernel's rxrpc module. This vulnerability occurs due to incorrect handling of call removal, specifically using list_del_init() instead of list_del_rcu(). A local user reading the /proc/net/rxrpc/calls file could potentially trigger an infinite loop, leading to a Denial of Service (DoS) condition."], "name": "CVE-2026-31642", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31642\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31642\nhttps://lore.kernel.org/linux-cve-announce/2026042457-CVE-2026-31642-b2f3@gregkh/T"], "threat_severity": "Moderate"}

{}