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Review reviewHigh

CVE-2024-26748

Linux Linux, linux kernel

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...

CVSS
7.8
EPSS
0.24%
15.4% percentile
CISA KEV
Not listed
Published
2024.04.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.24%
Technical severityCVSS 7.8

Vulnerability overview

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...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 7733f6c32e36ff9d7adadf40001039bf219b1cbe < aad6132ae6e4809e375431f8defd1521985e44e7, >= 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 1e204a8e9eb514e22a6567fb340ebb47df3f3a48, >= 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 3a2a909942b5335b7ea66366d84261b3ed5f89c8, >= 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 9a52b694b066f299d8b9800854a8503457a8b64c, >= 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 70e8038813f9d3e72df966748ebbc40efe466019, >= 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 92d20406a3d4ff3e8be667c79209dc9ed31df5b3, >= 7733f6c32e36ff9d7adadf40001039bf219b1cbe < 5fd9e45f1ebcd57181358af28506e8a661a260b3, >= 5.4, >= 5.4 < 5.4.270, >= 5.5 < 5.10.211, >= 5.11 < 5.15.150, >= 5.16 < 6.1.80, >= 6.2 < 6.6.19, >= 6.7 < 6.7.7, 6.8
Fixed versions
5.4.270, 5.10.211, 5.15.150, 6.1.80, 6.6.19, 6.7.7

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-415