usb: cdns3: fix memory double free when handle zero packet

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Summary

CVECVE-2024-26748
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-04-03 17:15:51 UTC
Updated2026-08-04 11:17:00 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fix memory double free when handle zero packet 829 if (request->complete) { 830 spin_unlock(&priv_dev->lock); 831 usb_gadget_giveback_request(&priv_ep->endpoint, 832 request); 833 spin_lock(&priv_dev->lock); 834 } 835 836 if (request->buf == priv_dev->zlp_buf) 837 cdns3_gadget_ep_free_request(&priv_ep->endpoint, request); Driver append an additional zero packet request when queue a packet, which length mod max packet size is 0. When transfer complete, run to line 831, usb_gadget_giveback_request() will free this requestion. 836 condition is true, so cdns3_gadget_ep_free_request() free this request again. Log: [ 1920.140696][ T150] BUG: KFENCE: use-after-free read in cdns3_gadget_giveback+0x134/0x2c0 [cdns3] [ 1920.140696][ T150] [ 1920.151837][ T150] Use-after-free read at 0x000000003d1cd10b (in kfence-#36): [ 1920.159082][ T150] cdns3_gadget_giveback+0x134/0x2c0 [cdns3] [ 1920.164988][ T150] cdns3_transfer_completed+0x438/0x5f8 [cdns3] Add check at line 829, skip call usb_gadget_giveback_request() if it is additional zero length packet request. Needn't call usb_gadget_giveback_request() because it is allocated in this driver.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: CWE-415

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 7733f6c32e36ff9d7adadf40001039bf219b1cbe aad6132ae6e4809e375431f8defd1521985e44e7 git Not specified
CNA Linux Linux affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe 1e204a8e9eb514e22a6567fb340ebb47df3f3a48 git Not specified
CNA Linux Linux affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe 3a2a909942b5335b7ea66366d84261b3ed5f89c8 git Not specified
CNA Linux Linux affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe 9a52b694b066f299d8b9800854a8503457a8b64c git Not specified
CNA Linux Linux affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe 70e8038813f9d3e72df966748ebbc40efe466019 git Not specified
CNA Linux Linux affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe 92d20406a3d4ff3e8be667c79209dc9ed31df5b3 git Not specified
CNA Linux Linux affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe 5fd9e45f1ebcd57181358af28506e8a661a260b3 git Not specified
CNA Linux Linux affected 5.4 Not specified
CNA Linux Linux unaffected 5.4 semver Not specified
CNA Linux Linux unaffected 5.4.270 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.211 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.150 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.80 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.19 6.6.* semver Not specified
CNA Linux Linux unaffected 6.7.7 6.7.* semver Not specified
CNA Linux Linux unaffected 6.8 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
usb: cdns3: fix memory double free when handle zero packet - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
usb: cdns3: fix memory double free when handle zero packet - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List
usb: cdns3: fix memory double free when handle zero packet - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
usb: cdns3: fix memory double free when handle zero packet - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
usb: cdns3: fix memory double free when handle zero packet - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
usb: cdns3: fix memory double free when handle zero packet - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
usb: cdns3: fix memory double free when handle zero packet - kernel/git/stable/linux.git - Linux kernel stable tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 6000567 Debian Security Update for linux (DSA 5658-1)

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