https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 28 Sep 2026 23:47:29 +0000 https://vulnerability.circl.lu/vuln/cve-2026-23433 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>arm_mpam: Fix null pointer dereference when restoring bandwidth counters</p> <p>When an MSC supporting memory bandwidth monitoring is brought offline and then online, mpam_restore_mbwu_state() calls __ris_msmon_read() via ipi to restore the configuration of the bandwidth counters. It doesn&#39;t care about the value read, mbwu_arg.val, and doesn&#39;t set it leading to a null pointer dereference when __ris_msmon_read() adds to it. This results in a kernel oops with a call trace such as:</p> <p>Call trace: __ris_msmon_read+0x19c/0x64c (P) mpam_restore_mbwu_state+0xa0/0xe8 smp_call_on_cpu_callback+0x1c/0x38 process_one_work+0x154/0x4b4 worker_thread+0x188/0x310 kthread+0x11c/0x130 ret_from_fork+0x10/0x20</p> <p>Provide a local variable for val to avoid __ris_msmon_read() dereferencing a null pointer when adding to val.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>arm_mpam: Fix null pointer dereference when restoring bandwidth counters</p> <p>When an MSC supporting memory bandwidth monitoring is brought offline and then online, mpam_restore_mbwu_state() calls __ris_msmon_read() via ipi to restore the configuration of the bandwidth counters. It doesn&#39;t care about the value read, mbwu_arg.val, and doesn&#39;t set it leading to a null pointer dereference when __ris_msmon_read() adds to it. This results in a kernel oops with a call trace such as:</p> <p>Call trace: __ris_msmon_read+0x19c/0x64c (P) mpam_restore_mbwu_state+0xa0/0xe8 smp_call_on_cpu_callback+0x1c/0x38 process_one_work+0x154/0x4b4 worker_thread+0x188/0x310 kthread+0x11c/0x130 ret_from_fork+0x10/0x20</p> <p>Provide a local variable for val to avoid __ris_msmon_read() dereferencing a null pointer when adding to val.</p> https://vulnerability.circl.lu/vuln/cve-2026-23433