Threats Tagged 'cve-2026-43458'
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Threats Tagged 'cve-2026-43458'
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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… (CVE-2026-43458)CVE-2026-43458 0 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. Join the discussion | GCVE Database | 05/08/2026, 15:16:00 UTC Added: 07/17/2026, 10:22:44 UTC |
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