CVE-2024-50145 (GCVE-0-2024-50145)

Vulnerability from cvelistv5 – Published: 2024-11-07 09:31 – Updated: 2025-11-03 22:26
VLAI?
Title
octeon_ep: Add SKB allocation failures handling in __octep_oq_process_rx()
Summary
In the Linux kernel, the following vulnerability has been resolved: octeon_ep: Add SKB allocation failures handling in __octep_oq_process_rx() build_skb() returns NULL in case of a memory allocation failure so handle it inside __octep_oq_process_rx() to avoid NULL pointer dereference. __octep_oq_process_rx() is called during NAPI polling by the driver. If skb allocation fails, keep on pulling packets out of the Rx DMA queue: we shouldn't break the polling immediately and thus falsely indicate to the octep_napi_poll() that the Rx pressure is going down. As there is no associated skb in this case, don't process the packets and don't push them up the network stack - they are skipped. Helper function is implemented to unmmap/flush all the fragment buffers used by the dropped packet. 'alloc_failures' counter is incremented to mark the skb allocation error in driver statistics. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 37d79d0596062057f588bdbb2ebad5455a43d353 , < 09ce491112bbf0b866e2638d3e961c1c73d1f00b (git)
Affected: 37d79d0596062057f588bdbb2ebad5455a43d353 , < c2d2dc4f88bb3cfc4f3cc320fd3ff51b0ae5b0ea (git)
Affected: 37d79d0596062057f588bdbb2ebad5455a43d353 , < 2dedcb6f99f4c1a11944e7cc35dbeb9b18a5cbac (git)
Affected: 37d79d0596062057f588bdbb2ebad5455a43d353 , < eb592008f79be52ccef88cd9a5249b3fc0367278 (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.115 , ≤ 6.1.* (semver)
Unaffected: 6.6.59 , ≤ 6.6.* (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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Sightings

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  • 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.



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