usb: cdns3: fix memory double free when handle zero packet (Linux Linux)

CVE-2024-26748
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.24 % · percentile 16 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In 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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 7733f6c32e36ff9d7adadf40001039bf219b1cbe < aad6132ae6e4809e375431f8defd1521985e44e7 ; affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 1e204a8e9eb514e22a6567fb340ebb47df3f3a48 ; affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 3a2a909942b5335b7ea66366d84261b3ed5f89c8 ; affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 9a52b694b066f299d8b9800854a8503457a8b64c ; affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 70e8038813f9d3e72df966748ebbc40efe466019 ; affected 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 92d20406a3d4ff3e8be667c79209dc9ed31df5b3
Linux · Linuxaffected 5.4 ; unaffected 0 < 5.4 ; unaffected 5.4.270 ≤ 5.4.* ; unaffected 5.10.211 ≤ 5.10.* ; unaffected 5.15.150 ≤ 5.15.* ; unaffected 6.1.80 ≤ 6.1.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD