wifi: ath9k_htc: Use __skb_set_length() for resetting urb before resubmit

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-49938
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-10-21 18:15:15 UTC
Updated2026-05-12 12:17:18 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: ath9k_htc: Use __skb_set_length() for resetting urb before resubmit Syzbot points out that skb_trim() has a sanity check on the existing length of the skb, which can be uninitialised in some error paths. The intent here is clearly just to reset the length to zero before resubmitting, so switch to calling __skb_set_length(skb, 0) directly. In addition, __skb_set_length() already contains a call to skb_reset_tail_pointer(), so remove the redundant call. The syzbot report came from ath9k_hif_usb_reg_in_cb(), but there's a similar usage of skb_trim() in ath9k_hif_usb_rx_cb(), change both while we're at it.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-824

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 e6b9bf32e0695e4f374674002de0527d2a6768eb git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 d1f2fbc6a769081503f6ffedbb5cd1ac497f0e77 git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 b02eb7c86ff2ef1411c3095ec8a52b13f68db04f git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 012ae530afa0785102360de452745d33c99a321b git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 6a875220670475d9247e576c15dc29823100a4e4 git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 e37e348835032d6940ec89308cc8996ded691d2d git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 2c230210ec0ae6ed08306ac70dc21c24b817bb95 git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 a9f4e28e8adaf0715bd4e01462af0a52ee46b01f git Not specified
CNA Linux Linux affected fb9987d0f748c983bb795a86f47522313f701a08 94745807f3ebd379f23865e6dab196f220664179 git Not specified
CNA Linux Linux affected 2.6.35 Not specified
CNA Linux Linux unaffected 2.6.35 semver Not specified
CNA Linux Linux unaffected 4.19.323 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.285 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.227 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.168 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.113 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.55 6.6.* semver Not specified
CNA Linux Linux unaffected 6.10.14 6.10.* semver Not specified
CNA Linux Linux unaffected 6.11.3 6.11.* semver Not specified
CNA Linux Linux unaffected 6.12 * original_commit_for_fix Not specified
ADP Siemens RUGGEDCOM RST2428P unaffected * custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family unaffected * custom Not specified
ADP Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 Family unaffected * custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e37e348835032d6940ec89308cc8996ded691d2d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a9f4e28e8adaf0715bd4e01462af0a52ee46b01f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e6b9bf32e0695e4f374674002de0527d2a6768eb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/94745807f3ebd379f23865e6dab196f220664179 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/03/msg00002.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/6a875220670475d9247e576c15dc29823100a4e4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d1f2fbc6a769081503f6ffedbb5cd1ac497f0e77 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/012ae530afa0785102360de452745d33c99a321b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-355557.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/2c230210ec0ae6ed08306ac70dc21c24b817bb95 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/01/msg00001.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/b02eb7c86ff2ef1411c3095ec8a52b13f68db04f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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