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CVE-2026-31703

A flaw was found in the Linux kernel. A use-after-free vulnerability exists in the `inode_switch_wbs_work_fn()` function, part of the kernel's writeback subsystem. This issue arises when a work item remains active after its associated memory object (`wb`) has been released, leading to system instability. An attacker could potentially exploit this vulnerability to cause a denial of service.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:136ae77cffb5bbc655c9baf14831dd13900198c2ee5c64fba6f6276fe5aadc53
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 10 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/7

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/fs-writeback.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.25","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/2

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/fs-writeback.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"382cf81cae89e58d22b4bdc38891cd4d0b9ba921","status":"affected","version":"d072b38a64ddbc2d58c2e525a24af24ecbfebcb7","versionType":"git"},{"lessThan":"19ec404b079be057b387643ba0c69bbcc5867c35","status":"affected","version":"ac7b2c21f2269d815ad0cdf0f8258d55185b805c","versionType":"git"},{"lessThan":"156cc63691c1f20905510b1007896e090355e6c2","status":"affected","version":"fabfc1fcddc5d8185722d4fde5f0…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/0
cvss · 2 assertions

{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/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:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/metrics/1/cvssV3_1

{"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:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/metrics/0/cvssV3_1

Affected products and versions

10 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/7
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/fs-writeback.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.25","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.2","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"kernel-rt","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/2
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/fs-writeback.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"382cf81cae89e58d22b4bdc38891cd4d0b9ba921","status":"affected","version":"d072b38a64ddbc2d58c2e525a24af24ecbfebcb7","versionType":"git"},{"lessThan":"19ec404b079be057b387643ba0c69bbcc5867c35","status":"affected","version":"ac7b2c21f2269d815ad0cdf0f8258d55185b805c","versionType":"git"},{"lessThan":"156cc63691c1f20905510b1007896e090355e6c2","status":"affected","version":"fabfc1fcddc5d8185722d4fde5f0…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"kernel","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/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:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/metrics/1/cvssV3_1
{"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:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-825","description":"Expired Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

9 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-31703"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/references/0
{"name":"RHBZ#2464385","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464385"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/references/1
{"url":"https://git.kernel.org/stable/c/028103656b84273c73e9e271cf95c9f3421f4b8a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/156cc63691c1f20905510b1007896e090355e6c2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/19ec404b079be057b387643ba0c69bbcc5867c35"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/382cf81cae89e58d22b4bdc38891cd4d0b9ba921"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/6689f01d6740cf358932b3e97ee968c6099800d9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/9223e5f30403a9b506d6d0bff4f2e29a2d7d46af"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/cna/references/4
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31703.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9fe5bbc2d4cd911e655f2130f04e346d5ffa1b7e71285c1c9f38228cf5515710 · sha256:679f31449a1e8053… · /containers/adp/0/references/2

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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