Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup vcc_cleanup() sets port->tty to NULL without holding port->lock, racing with vcc_event() LDC callbacks that read port->tty under port->lock and then use tty->port. This can cause a use-after-free when the callback dereferences tty->port after cleanup has already destroyed and freed it.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 57753441ef84bee3bf0e9ee1e3778d119c44aa32; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 88f6ecb058801e9ce7b9aabc966530118d7cd53c; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 821050631750e982007c0856c119346edba51cae; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 03b49c991abb8d021ca6fe51cd173447236b0552; 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 / Linux | unaffected 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
- https://git.kernel.org/stable/c/57753441ef84bee3bf0e9ee1e3778d119c44aa32
- https://git.kernel.org/stable/c/88f6ecb058801e9ce7b9aabc966530118d7cd53c
- https://git.kernel.org/stable/c/821050631750e982007c0856c119346edba51cae
- https://git.kernel.org/stable/c/1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4
- https://git.kernel.org/stable/c/03b49c991abb8d021ca6fe51cd173447236b0552