{"id":28624,"date":"2026-09-25T04:31:29","date_gmt":"2026-09-24T20:31:29","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93809"},"modified":"2026-09-25T04:31:29","modified_gmt":"2026-09-24T20:31:29","slug":"cve-2026-93809","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93809","title":{"rendered":"CVE-2026-93809 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/amdgpu: flush pen"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdgpu: flush pending RCU callbacks on module unload<\/p>\n<p>Call rcu_barrier() in module exit to wait for outstanding call_rcu() callbacks<br \/>\nbefore freeing module text, preventing late callback execution in freed memory.<\/p>\n<p>BUG: unable to handle page fault for address: ffffffffc1d59c40<br \/>\nPGD 6a12067 P4D 6a12067 PUD 6a14067 PMD 13698b067 PTE 0<br \/>\nOops: 0010 [#1] SMP NOPTI<br \/>\nRIP: 0010:0xffffffffc1d59c40<br \/>\nCode: Unable to access opcode bytes at RIP 0xffffffffc1d59c16.<br \/>\nRSP: 0018:ffffc900198c0f28 EFLAGS: 00010286<br \/>\nRAX: ffffffffc1d59c40 RBX: ffff897c7d6b61c0 RCX: ffff88826aff4590<br \/>\nRDX: ffff8884d8b35490 RSI: ffffc900198c0f30 RDI: ffff88812af67290<br \/>\nRBP: 000000000000000a (DONE segment entries) R08: 0000000000000000 R09: 0000000000000100<br \/>\nR10: 0000000000000000 R11: ffffffff82a06100 R12: ffff88811a4e3700<br \/>\nR13: 0000000000000000 R14: ffff897c7d6b6270 R15: 0000000000000000<br \/>\nFS:  0000000000000000(0000) GS:ffff897c7d680000(0000) knlGS:0000000000000000<br \/>\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br \/>\nCR2: ffffffffc1d59c16 CR3: 00000104a980a001 CR4: 0000000002770ee0<br \/>\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000<br \/>\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400<br \/>\nPKRU: 55555554<br \/>\nCall Trace:<\/p>\n<p> ? rcu_do_batch+0x163\/0x450<br \/>\n ? rcu_core+0x177\/0x1c0<br \/>\n ? __do_softirq+0xc1\/0x280<br \/>\n ? asm_call_irq_on_stack+0xf\/0x20<\/p>\n<p> ? do_softirq_own_stack+0x37\/0x50<br \/>\n ? irq_exit_rcu+0xc4\/0x100<br \/>\n ? sysvec_apic_timer_interrupt+0x36\/0x80<br \/>\n ? asm_sysvec_apic_timer_interrupt+0x12\/0x20<br \/>\n ? cpuidle_enter_state+0xd4\/0x360<br \/>\n ? cpuidle_enter+0x29\/0x40<br \/>\n ? cpuidle_idle_call+0x108\/0x1a0<br \/>\n ? do_idle+0x77\/0xf0<br \/>\n ? cpu_startup_entry+0x19\/0x20<br \/>\n ? secondary_startup_64_no_verify+0xbf\/0xcb<\/p>\n<p>(cherry picked from commit feaa5039f6c12acc9aa934c2d45dcd251a12c69f)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdgpu: flush pending RCU callbacks on module unload<\/p>\n<p>Call rcu_barrier() in module exit to wait for outstanding call_rcu() call<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28624","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}