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CVE-2026-98755

tty: vcc: zero-initialize control packet in vcc_send_ctl() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: tty: vcc: zero-initialize control packet in vcc_send_ctl() The stack-allocated struct vio_vcc pkt was partially initialized, leaving the tag.stype_env field uninitialized before being sent via ldc_write(), potentially leaking kernel stack data to the LDC peer.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4b59afc8af3143ae03e4f9b81ca66aa5a1c1ebed; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6f1a08ef02825b440126c406ea63ef6128888e15; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 4335278d0e75395cbfaf71c84b521df56d69e936; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 399aa38af1d78001612e3130b2056ea392a355ca; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1f71f565e3585da1098ff19ca3c24687dab59185; affected 0 before 6.6.160; affected 0 before 6.12.113; affected 0 before 6.18.56; affected 0 before 7.2.10
Linux / Linuxunaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References