Miembros de
Boletines de Vulnerabilidades |
CVE-2026-43458 |
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| Software afectado | LINUX KERNEL |
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In the Linux kernel, the following vulnerability has been resolved: serial: caif: hold tty->link reference in ldisc_open and ser_release A reproducer triggers a KASAN slab-use-after-free in pty_write_room() when caif_serial's TX path calls tty_write_room(). The faulting access is on tty->link->port. Hold an extra kref on tty->link for the lifetime of the caif_serial line discipline: get it in ldisc_open() and drop it in ser_release(), and also drop it on the ldisc_open() error path. With this change applied, the reproducer no longer triggers the UAF in my testing. |
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Link: |
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| https://nvd.nist.gov/vuln/detail/CVE-2026-43458 | |
