CVE-2026-98725

Severidad por fuente

Ninguna fuente da una puntuación CVSS.

La etiqueta propia de Trivy es HIGH. Crítica según Ubuntu. Más baja según Photon OS (media).

Descripción

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge() nvmet_auth_challenge() receives its output buffer as a void pointer. sizeof(*d) therefore evaluates to one with GCC and undercounts the fixed challenge header by 15 bytes. A short AUTH_RECEIVE buffer can pass the check before the challenge is copied past the end of its allocation. Use the typed challenge pointer when calculating the response size. BUG: KASAN: slab-out-of-bounds in nvmet_execute_auth_receive (drivers/nvme/target/fabrics-cmd-auth.c:442 drivers/nvme/target/fabrics-cmd-auth.c:569) Write of size 32 by task kworker/1:1H/64 Workqueue: nvmet_tcp_wq nvmet_tcp_io_work Call Trace: nvmet_execute_auth_receive (drivers/nvme/target/fabrics-cmd-auth.c:442 drivers/nvme/target/fabrics-cmd-auth.c:569) nvmet_tcp_try_recv_pdu (drivers/nvme/target/tcp.c:1119 drivers/nvme/target/tcp.c:1243) nvmet_tcp_io_work (drivers/nvme/target/tcp.c:1350 drivers/nvme/target/tcp.c:1382 drivers/nvme/target/tcp.c:1445) process_one_work (kernel/workqueue.c:3322) worker_thread (kernel/workqueue.c:3405 kernel/workqueue.c:3486) kthread (kernel/kthread.c:436) ret_from_fork (arch/x86/kernel/process.c:158) ret_from_fork_asm (arch/x86/entry/entry_64.S:245) The buggy address is located 16 bytes inside of allocated 33-byte region [ffff888000554e80, ffff888000554ea1) Kernel panic - not syncing: KASAN: panic_on_warn set ...

Paquetes afectados y versiones corregidas

Referencias

• https://git.kernel.org/stable/c/7fd3c363eba4f2aceb4b3f31cd1cf65e0dcbaee4
• https://git.kernel.org/stable/c/8a9b4c0eef19c207663c1ee888257307c869ca86
• https://git.kernel.org/stable/c/9d61131acd742cf97ee64e453383e41b46568513
• https://git.kernel.org/stable/c/ef4dfad231a787aded76e5b03788ddb18c8aebab
• https://git.kernel.org/stable/c/fa6778e030bed9841ddcdf96bc7018da9ac03562
• https://www.cve.org/CVERecord?id=CVE-2026-98725