CVE-2026-23462

Schwachstellenklasse

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: Fix possible UAF This fixes the following trace caused by not dropping l2cap_conn reference when user->remove callback is called: [ 97.809249] l2cap_conn_free: freeing conn ffff88810a171c00 [ 97.809907] CPU: 1 UID: 0 PID: 1419 Comm: repro_standalon Not tainted 7.0.0-rc1-dirty #14 PREEMPT(lazy) [ 97.809935] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014 [ 97.809947] Call Trace: [ 97.809954] <TASK> [ 97.809961] dump_stack_lvl (lib/dump_stack.c:122) [ 97.809990] l2cap_conn_free (net/bluetooth/l2cap_core.c:1808) [ 97.810017] l2cap_conn_del (./include/linux/kref.h:66 net/bluetooth/l2cap_core.c:1821 net/bluetooth/l2cap_core.c:1798) [ 97.810055] l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7347 (discriminator 1) net/bluetooth/l2cap_core.c:7340 (discriminator 1)) [ 97.810086] ? __pfx_l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7341) [ 97.810117] hci_conn_hash_flush (./include/net/bluetooth/hci_core.h:2152 (discriminator 2) net/bluetooth/hci_conn.c:2644 (discriminator 2)) [ 97.810148] hci_dev_close_sync (net/bluetooth/hci_sync.c:5360) [ 97.810180] ? __pfx_hc

Betroffene Produkte

• linux linux_kernel

Quellen

• https://git.kernel.org/stable/c/18b1263ece6431bd78fa6b61faaef5281203741c
• https://git.kernel.org/stable/c/21a47a119f33df9bb157326846390d7e8e1b45ba
• https://git.kernel.org/stable/c/45ebe5b900200ac3e01f3470506a44a447825721
• https://git.kernel.org/stable/c/4d37fa7582aa960ba23e10a7a2596a29f37ad281
• https://git.kernel.org/stable/c/7c805b7d1e580eececcc92470292e3dbc42bc3f5
• https://git.kernel.org/stable/c/d955ccbf91ab74d76fe9e4eab2846a7d8a173075