CVE-2026-90034 PUBLISHED

usb: image: mdc800: change kmalloc() to kzalloc()

Assigner: Linux
Reserved: 11.09.2026 Published: 16.09.2026 Updated: 16.09.2026

In the Linux kernel, the following vulnerability has been resolved:

usb: image: mdc800: change kmalloc() to kzalloc()

Change the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and download_urb_buffer to kzalloc(), avoiding potential stack leaks if a shorter message is received in mdc800_usb_irq() and mdc800_usb_download_notify()

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 6c601410d1a9ae645f604fe2f61b9f4942c77dfb (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 2df8f7720ed91f1aad4f128553b6e90c7c5fac1e (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 553c375e86a49882e95840565512e17bff31cc3a (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 8c38049879f2108f57c98f03cc7f3db51a12bdab (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 838455cc8bfe1278150d1d776529edea6cd4c1dd (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to e22428f0c038c23109c0383a235aa607b0cd4c95 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 2430eb81e44111b30eeb5273bbcf8b24ca517ef9 (excl.)
  • affected from 0 to 5.10.270 (excl.)
  • affected from 0 to 5.15.221 (excl.)
  • affected from 0 to 6.1.188 (excl.)
  • affected from 0 to 6.6.157 (excl.)
  • affected from 0 to 6.12.110 (excl.)
  • affected from 0 to 6.18.51 (excl.)
  • affected from 0 to 7.2.5 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 5.10.270 to 5.10.* (incl.)
  • unaffected from 5.15.221 to 5.15.* (incl.)
  • unaffected from 6.1.188 to 6.1.* (incl.)
  • unaffected from 6.6.157 to 6.6.* (incl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.51 to 6.18.* (incl.)
  • unaffected from 7.2.5 to 7.2.* (incl.)
  • unaffected from 7.3-rc2 to * (incl.)

References