{"id":"CVE-2025-23135","revision":"2e6738bce63d4283848da5b9d527bc64","records":[{"revision":"2e6738bce63d4283848da5b9d527bc64","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-23135","aliases":[],"title":"RISC-V: KVM: Teardown riscv specific bits after kvm_exit","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRISC-V: KVM: Teardown riscv specific bits after kvm_exit\n\nDuring a module removal, kvm_exit invokes arch specific disable\ncall which disables AIA. However, we invoke aia_exit before kvm_exit\nresulting in the following warning. KVM kernel module can't be inserted\nafterwards due to inconsistent state of IRQ.\n\n[25469.031389] percpu IRQ 31 still enabled on CPU0!\n[25469.031732] WARNING: CPU: 3 PID: 943 at kernel/irq/manage.c:2476 __free_percpu_irq+0xa2/0x150\n[25469.031804] Modules linked in: kvm(-)\n[25469.031848] CPU: 3 UID: 0 PID: 943 Comm: rmmod Not tainted 6.14.0-rc5-06947-g91c763118f47-dirty #2\n[25469.031905] Hardware name: riscv-virtio,qemu (DT)\n[25469.031928] epc : __free_percpu_irq+0xa2/0x150\n[25469.031976] ra : __free_percpu_irq+0xa2/0x150\n[25469.032197] epc : ffffffff8007db1e ra : ffffffff8007db1e sp : ff2000000088bd50\n[25469.032241] gp : ffffffff8131cef8 tp : ff60000080b96400 t0 : ff2000000088baf8\n[25469.032285] t1 : fffffffffffffffc t2 : 5249207570637265 s0 : ff2000000088bd90\n[25469.032329] s1 : ff60000098b21080 a0 : 037d527a15eb4f00 a1 : 037d527a15eb4f00\n[25469.032372] a2 : 0000000000000023 a3 : 0000000000000001 a4 : ffffffff8122dbf8\n[25469.032410] a5 : 0000000000000fff a6 : 0000000000000000 a7 : ffffffff8122dc10\n[25469.032448] s2 : ff60000080c22eb0 s3 : 0000000200000022 s4 : 000000000000001f\n[25469.032488] s5 : ff60000080c22e00 s6 : ffffffff80c351c0 s7 : 0000000000000000\n[25469.032582] s8 : 0000000000000003 s9 : 000055556b7fb490 s10: 00007ffff0e12fa0\n[25469.032621] s11: 00007ffff0e13e9a t3 : ffffffff81354ac7 t4 : ffffffff81354ac7\n[25469.032664] t5 : ffffffff81354ac8 t6 : ffffffff81354ac7\n[25469.032698] status: 0000000200000100 badaddr: ffffffff8007db1e cause: 0000000000000003\n[25469.032738] [] __free_percpu_irq+0xa2/0x150\n[25469.032797] [] free_percpu_irq+0x30/0x5e\n[25469.032856] [] kvm_riscv_aia_exit+0x40/0x42 [kvm]\n[25469.033947] [] cleanup_module+0x10/0x32 [kvm]\n[25469.035300] [] __riscv_sys_delete_module+0x18e/0x1fc\n[25469.035374] [] syscall_handler+0x3a/0x46\n[25469.035456] [] do_trap_ecall_u+0x72/0x134\n[25469.035536] [] handle_exception+0x148/0x156\n\nInvoke aia_exit and other arch specific cleanup functions after kvm_exit\nso that disable gets a chance to be called first before exit.","state":0,"publishedAt":"2025-04-16T14:13:15.795+00:00","modifiedAt":"2026-10-21T12:36:21.571+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"arch/riscv/kvm/main.c\"\n ],\n \"versions\": [\n {\n \"version\": \"54e43320c2ba0c70258a3aea690da38c6ea3293c\",\n \"lessThan\": \"ce906c4ae572554f4ea4381d7d0a4ab39f5fca5d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"54e43320c2ba0c70258a3aea690da38c6ea3293c\",\n \"lessThan\": \"b7236c52151c91f7b83a42d6ec5728a49e06416f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"54e43320c2ba0c70258a3aea690da38c6ea3293c\",\n \"lessThan\": \"1edb2de48616b11ee05e9a65d74c70abcb6d9939\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"54e43320c2ba0c70258a3aea690da38c6ea3293c\",\n \"lessThan\": \"1521cc04f0b6e737ff30105aa57fa9dde8493231\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"54e43320c2ba0c70258a3aea690da38c6ea3293c\",\n \"lessThan\": \"2d117e67f318303f6ab699a5511d1fac3f170545\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"arch/riscv/kvm/main.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.4\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.4\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.160\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.114\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.13.11\",\n \"lessThanOrEqual\": \"6.13.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.2\",\n \"lessThanOrEqual\": \"6.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/ce906c4ae572554f4ea4381d7d0a4ab39f5fca5d","https://git.kernel.org/stable/c/b7236c52151c91f7b83a42d6ec5728a49e06416f","https://git.kernel.org/stable/c/1edb2de48616b11ee05e9a65d74c70abcb6d9939","https://git.kernel.org/stable/c/1521cc04f0b6e737ff30105aa57fa9dde8493231","https://git.kernel.org/stable/c/2d117e67f318303f6ab699a5511d1fac3f170545"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-23135","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-23135","identifiers":["CVE-2025-23135"]},"retained":false,"historicalAffected":[]}],"coverage":[]}