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CVE-2026-90019

usb: gadget: fix null pointer dereference in usb_put_function_instance()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fix null pointer dereference in usb_put_function_instance() usb_put_function_instance() attempts to dereference fd inside fi struct to get mod in uvc_alloc_inst() error path. However, fd is not allocated until later in try_get_usb_function_instance() after allocating fi in uvc_alloc_inst() and thus guranteed to be null in error path. Fix this by adding a null check for fi->fd that returns if fd is null.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in 0fc54a00954f9f4c3e3d4ffa64a530685d99a39b; From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in 6e6736c049683380f5e20becde498986e9293ca4; From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in 3a9691fff79bcce95338435599df6d3ae433cfdc; From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in 7a4f4ca7ff32ae24807c83e2a06d62b13378d53c; From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in 6ea3a073ca97716d4a73df49a3bec1c3ccf8e2a0; From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in d3a7fa61997db3bf6dadef4c1bd87a4fa782a817; From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in 5117f236e9e30744338b425395d55913c4500897; From 0062f6e56f70bd2230ba1ebd1667d1b32a1af3b2 · fixed in 6e74ac5c596fd246e37eadfc354567179ccbe9aa

  • Linux Linux

    3.9

  • KernelLinux

    From 3.9.0 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5

References 8

git.kernel.org