CVE-2026-52922 (GCVE-0-2026-52922)

Vulnerability from cvelistv5 – Published: 2026-06-24 07:14 – Updated: 2026-06-28 06:36
VLAI
Title
batman-adv: dat: handle forward allocation error
Summary
In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: handle forward allocation error batadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb for each DHT candidate, but does not check the return value before passing it to batadv_send_skb_prepare_unicast_4addr(). That function dereferences the skb unconditionally, so a failed allocation triggers a NULL pointer dereference. Skip forwarding to the current DHT candidate on allocation failure.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < 9bcebaedfb8479cb4affb23c7a0d000ca9a20e73 (git)
Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < 2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef (git)
Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < ce0c381199402a2c58f4599f4f6ed100d872d0da (git)
Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < 866ac1d57040ed0b44ca732e3c66b3aa6b93011c (git)
Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < 4d420d9ee70a220a2cd95aa0dd2e15acad66a505 (git)
Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < 9cceea8eeba710def2a5707ee00f00c74a9a1cac (git)
Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < cf48e75fc4fe0d5cc7721c82d454221d01367b93 (git)
Affected: 785ea1144182c341b8b85b0f8180291839d176a8 , < 2d8826a2d3657cea66fb0370f9e521575a673871 (git)
Create a notification for this product.
Linux Linux Affected: 3.8
Unaffected: 0 , < 3.8 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.142 , ≤ 6.6.* (semver)
Unaffected: 6.12.92 , ≤ 6.12.* (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: batman-adv: dat: handle forward allocation error",
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      "id": "CVE-2026-52922",
      "initial_release_date": "2026-06-25T02:20:04Z",
      "product_status:known_affected": "220",
      "product_status:known_not_affected": "71",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-52922",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-52922.json",
      "version": "2"
    }
  }
}



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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.