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CVE-2026-52947

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix refcount saturation and potential UAF in qrtr_port_remove In qrtr_port_remove(), the socket reference count is decremented via __sock_put() before the port is removed from the qrtr_ports XArray and before the RCU grace period elapses. This breaks the fundamental RCU update paradigm. It exposes a race window where a concurrent RCU reader (such as qrtr_reset_ports() or qrtr_port_lookup()) can obtain a pointer to
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:aacd9edf22addc8d81418a8e1f0a25b8b29f276183be261694595439f3e376ec
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["net/qrtr/af_qrtr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEq…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/qrtr/af_qrtr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2aa4c12723fe432e623462a3be42a197a128722b","status":"affected","version":"bdabad3e363d825ddf9679dd431cca0b2c30f881","versionType":"git"},{"lessThan":"03bfa95e452e2b6ccd76a332060ae4feaf5ad84d","status":"affected","version":"bdabad3e363d825ddf9679dd431cca0b2c30f881","versionType":"git"},{"lessThan":"474293d90880622fde9d2430fb0165767090f7b3","status":"affected","version":"bdabad3e363d825ddf9679dd431…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/qrtr/af_qrtr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.7"},{"lessThan":"4.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEq…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/qrtr/af_qrtr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2aa4c12723fe432e623462a3be42a197a128722b","status":"affected","version":"bdabad3e363d825ddf9679dd431cca0b2c30f881","versionType":"git"},{"lessThan":"03bfa95e452e2b6ccd76a332060ae4feaf5ad84d","status":"affected","version":"bdabad3e363d825ddf9679dd431cca0b2c30f881","versionType":"git"},{"lessThan":"474293d90880622fde9d2430fb0165767090f7b3","status":"affected","version":"bdabad3e363d825ddf9679dd431…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/03bfa95e452e2b6ccd76a332060ae4feaf5ad84d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/2047c2aa0963bb2872fd722300a15bcb441a4c00"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/2aa4c12723fe432e623462a3be42a197a128722b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/3b20ec8f31e8a6a6782243f473b0abd3463621df"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/474293d90880622fde9d2430fb0165767090f7b3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/7de2d447072be3b1a76793f034432338fc9c494b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/a2171131ecda1ed61a594a1eb715e75fdad0fef5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/ab269990ed58143a92a263be1bee626d82ac03da"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2a5d8defdaed0d6980b7c27abb7e334de3ef3584099aac98b8980f69782e64bb · sha256:e921ef1cf0b53534… · /containers/cna/references/5

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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