{"id":"CVE-2024-50139","summary":"KVM: arm64: Fix shift-out-of-bounds bug","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: Fix shift-out-of-bounds bug\n\nFix a shift-out-of-bounds bug reported by UBSAN when running\nVM with MTE enabled host kernel.\n\nUBSAN: shift-out-of-bounds in arch/arm64/kvm/sys_regs.c:1988:14\nshift exponent 33 is too large for 32-bit type 'int'\nCPU: 26 UID: 0 PID: 7629 Comm: qemu-kvm Not tainted 6.12.0-rc2 #34\nHardware name: IEI NF5280R7/Mitchell MB, BIOS 00.00. 2024-10-12 09:28:54 10/14/2024\nCall trace:\n dump_backtrace+0xa0/0x128\n show_stack+0x20/0x38\n dump_stack_lvl+0x74/0x90\n dump_stack+0x18/0x28\n __ubsan_handle_shift_out_of_bounds+0xf8/0x1e0\n reset_clidr+0x10c/0x1c8\n kvm_reset_sys_regs+0x50/0x1c8\n kvm_reset_vcpu+0xec/0x2b0\n __kvm_vcpu_set_target+0x84/0x158\n kvm_vcpu_set_target+0x138/0x168\n kvm_arch_vcpu_ioctl_vcpu_init+0x40/0x2b0\n kvm_arch_vcpu_ioctl+0x28c/0x4b8\n kvm_vcpu_ioctl+0x4bc/0x7a8\n __arm64_sys_ioctl+0xb4/0x100\n invoke_syscall+0x70/0x100\n el0_svc_common.constprop.0+0x48/0xf0\n do_el0_svc+0x24/0x38\n el0_svc+0x3c/0x158\n el0t_64_sync_handler+0x120/0x130\n el0t_64_sync+0x194/0x198","modified":"2026-03-20T12:39:35.975971Z","published":"2024-11-07T09:31:15.925Z","related":["MGASA-2024-0368","MGASA-2024-0369","SUSE-SU-2024:4314-1","SUSE-SU-2024:4316-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50139.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/04ed2ba07ce73f323052475fbd33d647aca3ff2e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4b9e11794d910aa55300debbac5f0adcc42c491a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c6c167afa090ea0451f91814e1318755a8fb8bb9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50139.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-50139"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7af0c2534f4c57b16e92dfca8c5f40fa90fbb3f3"},{"fixed":"04ed2ba07ce73f323052475fbd33d647aca3ff2e"},{"fixed":"4b9e11794d910aa55300debbac5f0adcc42c491a"},{"fixed":"c6c167afa090ea0451f91814e1318755a8fb8bb9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50139.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}