CVE-2026-63957

USB: serial: safe_serial: fix memory corruption with small endpoint

State: Published
Severity: Not scored
Published: Jul 19, 2026
Updated: Jul 19, 2026
Reserved: Jul 19, 2026

Description

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

USB: serial: safe_serial: fix memory corruption with small endpoint

Make sure that the bulk-out buffer size is at least eight bytes to avoid user-controlled slab corruption in "safe" mode should a malicious device report a smaller size.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before e3a1d6eee25dc96b1d2db0ecd9d8741e92056476Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before c7336c0fba5c959249f3d793d33076b992ec3ee4Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9b3145b3001fb24de1da72d1deb0bea70e5a078bAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before a550ed2117ca4709d38f713933ff924a83942e41Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f793b67d41e5fab719c5a90baa77cbd2fe259517Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 857b3cc73f91871ae4433f8b97c4670b78f8dc96Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 438061ed1ad85e6743e2dce826671772d81089ecAffected
LinuxLinux	2.6.12Affected before 2.6.12Not affected 5.10.259 through 5.10.Not affected 5.15.210 through 5.15.Not affected 6.1.176 through 6.1.Not affected 6.6.143 through 6.6.Not affected 6.12.93 through 6.12.Not affected 6.18.35 through 6.18.Not affected 7.0.12 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before e3a1d6eee25dc96b1d2db0ecd9d8741e92056476Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before c7336c0fba5c959249f3d793d33076b992ec3ee4Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 161ea0e5236f5f051d2d85d6c54dd08ee9dc7ba4Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9b3145b3001fb24de1da72d1deb0bea70e5a078bAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before a550ed2117ca4709d38f713933ff924a83942e41Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f793b67d41e5fab719c5a90baa77cbd2fe259517Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 857b3cc73f91871ae4433f8b97c4670b78f8dc96Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 438061ed1ad85e6743e2dce826671772d81089ecAffected

LinuxLinux

2.6.12Affected
before 2.6.12Not affected
5.10.259 through 5.10.*Not affected
5.15.210 through 5.15.*Not affected
6.1.176 through 6.1.*Not affected
6.6.143 through 6.6.*Not affected
6.12.93 through 6.12.*Not affected
6.18.35 through 6.18.*Not affected
7.0.12 through 7.0.*Not affected
7.1 and laterNot affected

References

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