CVE-2026-72489: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: staging: nvec: fix use-after-free in nvec_rx_completed() In nvec_rx_completed(), when an incomplete RX transfer is detected, nvec_msg_free() is called to return the message back to the pool by clearing its 'used' atomic flag. Immediately after this, the code accesses nvec->rx->data[0] to check the message type. Since nvec_msg_free() marks the pool slot as available via atomic_set(), any concurrent or subsequent call to nvec_msg_alloc() could claim that same slot and overwrite its data[] array. Reading nvec->rx->data[0] after freeing the message is therefore a use-after-free. Fix this by saving the message type byte before calling nvec_msg_free(), then using the saved value for the battery quirk check.

Засегнати продукти

• Linux Linux: d6bdcf2e1019351cbc176e963b7756766bdd8721 преди 6b2ea886ebdae44a2394029844a4e78f58e1587d; d6bdcf2e1019351cbc176e963b7756766bdd8721 преди a37625c7b688fcf68a54263528eccbabfd7fa17a; d6bdcf2e1019351cbc176e963b7756766bdd8721 преди 9f7fe4165a1f1014bdadc8e744c0fd3c2d8c0b89; d6bdcf2e1019351cbc176e963b7756766bdd8721 преди 08626fcfe12308ca3f8b22c538ba7dee0b2dce7a; d6bdcf2e1019351cbc176e963b7756766bdd8721 преди f19a5bc059051143c489dd6f79a0f9c3bfd13aea; d6bdcf2e1019351cbc176e963b7756766bdd8721 преди bb3d592c7d6c4ec8ac6640c690ca13298e7e8e90; d6bdcf2e1019351cbc176e963b7756766bdd8721 преди 5de04caa46b635e180cecbd164e333eca535db94; d6bdcf2e1019351cbc176e963b7756766bdd8721 преди 26813881181deb3a32fbb59eadb2599cbe8423f6
• Linux Linux: 3.2; преди 3.2; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-72489
• https://nvd.nist.gov/vuln/detail/CVE-2026-72489
• https://git.kernel.org/stable/c/6b2ea886ebdae44a2394029844a4e78f58e1587d
• https://git.kernel.org/stable/c/a37625c7b688fcf68a54263528eccbabfd7fa17a
• https://git.kernel.org/stable/c/9f7fe4165a1f1014bdadc8e744c0fd3c2d8c0b89
• https://git.kernel.org/stable/c/08626fcfe12308ca3f8b22c538ba7dee0b2dce7a
• https://git.kernel.org/stable/c/f19a5bc059051143c489dd6f79a0f9c3bfd13aea
• https://git.kernel.org/stable/c/bb3d592c7d6c4ec8ac6640c690ca13298e7e8e90
• https://git.kernel.org/stable/c/5de04caa46b635e180cecbd164e333eca535db94
• https://git.kernel.org/stable/c/26813881181deb3a32fbb59eadb2599cbe8423f6