CVE-2026-52984 (GCVE-0-2026-52984)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:28 – Updated: 2026-06-24 16:28
VLAI
Title
net/sched: netem: fix queue limit check to include reordered packets
Summary
In the Linux kernel, the following vulnerability has been resolved: net/sched: netem: fix queue limit check to include reordered packets The queue limit check in netem_enqueue() uses q->t_len which only counts packets in the internal tfifo. Packets placed in sch->q by the reorder path (__qdisc_enqueue_head) are not counted, allowing the total queue occupancy to exceed sch->limit under reordering. Include sch->q.qlen in the limit check.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 216509dda290f6db92c816dd54b83c1df9da9e76 , < 0f875d52db4c921da610e481b72f03cc82fdcb72 (git)
Affected: c2047b0e216c8edce227d7c42f99ac2877dad0e4 , < ef9a41b3870fb90577da5b2de5bd140022d4021e (git)
Affected: 10df49cfca73dfbbdb6c4150d859f7e8926ae427 , < 74fcd8e127200a50ee22ba2b45c164722bdb9177 (git)
Affected: 3824c5fad18eeb7abe0c4fc966f29959552dca3e , < 39a66e83ea41fe845631eeb8d326953de27d13f9 (git)
Affected: 356078a5c55ec8d2061fcc009fb8599f5b0527f9 , < 54b5dbacd00dedffd5e2eed76de1c3839996b5e6 (git)
Affected: f8d4bc455047cf3903cd6f85f49978987dbb3027 , < 8450462eaf91d5d2a9e863507b16d18e814baef3 (git)
Affected: f8d4bc455047cf3903cd6f85f49978987dbb3027 , < 936a7dd87251f6f3e88983350833edf60fe6a80b (git)
Affected: f8d4bc455047cf3903cd6f85f49978987dbb3027 , < 4185701fcce6b426b6c3630b25330dddd9c47b0d (git)
Affected: 83c6ab12f08dcc09d4c5ac86fdb89736b28f1d31 (git)
Affected: 5.10.232 , < 5.10.258 (semver)
Affected: 5.15.175 , < 5.15.209 (semver)
Affected: 6.1.121 , < 6.1.175 (semver)
Affected: 6.6.67 , < 6.6.141 (semver)
Affected: 6.12.6 , < 6.12.91 (semver)
Affected: 5.4.288 , < 5.5 (semver)
Create a notification for this product.
Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.141 , ≤ 6.6.* (semver)
Unaffected: 6.12.91 , ≤ 6.12.* (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "providerMetadata": {
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Packets placed in sch-\u003eq by\\nthe reorder path (__qdisc_enqueue_head) are not counted, allowing\\nthe total queue occupancy to exceed sch-\u003elimit under reordering.\\n\\nInclude sch-\u003eq.qlen in the limit check.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/sched/sch_netem.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"216509dda290f6db92c816dd54b83c1df9da9e76\",\"lessThan\":\"0f875d52db4c921da610e481b72f03cc82fdcb72\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c2047b0e216c8edce227d7c42f99ac2877dad0e4\",\"lessThan\":\"ef9a41b3870fb90577da5b2de5bd140022d4021e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"10df49cfca73dfbbdb6c4150d859f7e8926ae427\",\"lessThan\":\"74fcd8e127200a50ee22ba2b45c164722bdb9177\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"3824c5fad18eeb7abe0c4fc966f29959552dca3e\",\"lessThan\":\"39a66e83ea41fe845631eeb8d326953de27d13f9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"356078a5c55ec8d2061fcc009fb8599f5b0527f9\",\"lessThan\":\"54b5dbacd00dedffd5e2eed76de1c3839996b5e6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f8d4bc455047cf3903cd6f85f49978987dbb3027\",\"lessThan\":\"8450462eaf91d5d2a9e863507b16d18e814baef3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f8d4bc455047cf3903cd6f85f49978987dbb3027\",\"lessThan\":\"936a7dd87251f6f3e88983350833edf60fe6a80b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f8d4bc455047cf3903cd6f85f49978987dbb3027\",\"lessThan\":\"4185701fcce6b426b6c3630b25330dddd9c47b0d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"83c6ab12f08dcc09d4c5ac86fdb89736b28f1d31\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.10.232\",\"lessThan\":\"5.10.258\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.15.175\",\"lessThan\":\"5.15.209\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.121\",\"lessThan\":\"6.1.175\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.67\",\"lessThan\":\"6.6.141\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.12.6\",\"lessThan\":\"6.12.91\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.288\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/sched/sch_netem.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.13\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.13\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.258\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.209\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.175\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.141\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.91\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.33\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.10\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0f875d52db4c921da610e481b72f03cc82fdcb72\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/39a66e83ea41fe845631eeb8d326953de27d13f9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4185701fcce6b426b6c3630b25330dddd9c47b0d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/54b5dbacd00dedffd5e2eed76de1c3839996b5e6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/74fcd8e127200a50ee22ba2b45c164722bdb9177\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8450462eaf91d5d2a9e863507b16d18e814baef3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/936a7dd87251f6f3e88983350833edf60fe6a80b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ef9a41b3870fb90577da5b2de5bd140022d4021e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.