{"id":"CVE-2025-71129","state":"PUBLISHED","title":"LoongArch: BPF: Sign extend kfunc call arguments","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Sign extend kfunc call arguments\n\nThe kfunc calls are native calls so they should follow LoongArch calling\nconventions. Sign extend its arguments properly to avoid kernel panic.\nThis is done by adding a new emit_abi_ext() helper. The emit_abi_ext()\nhelper performs extension in place meaning a value already store in the\ntarget register (Note: this is different from the existing sign_extend()\nhelper and thus we can't reuse it).","publishedAt":"2026-01-14T15:07:45.786Z","updatedAt":"2026-05-11T21:55:32.205Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"fd43edf357a3a1f5ed1c4bf450b60001c9091c39","versionType":"git"},{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"0d666db731e95890e0eda7ea61bc925fd2be90c6","versionType":"git"},{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"321993a874f571a94b5a596f1132f798c663b56e","versionType":"git"},{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"3f5a238f24d7b75f9efe324d3539ad388f58536e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/net/bpf_jit.c","arch/loongarch/net/bpf_jit.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.64","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.4","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/net/bpf_jit.c","arch/loongarch/net/bpf_jit.h"]}],"references":["https://git.kernel.org/stable/c/fd43edf357a3a1f5ed1c4bf450b60001c9091c39","https://git.kernel.org/stable/c/0d666db731e95890e0eda7ea61bc925fd2be90c6","https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56e","https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/71xxx/CVE-2025-71129.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-71129","state":"PUBLISHED","datePublished":"2026-01-14T15:07:45.786Z","dateUpdated":"2026-05-11T21:55:32.205Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:30:19.655Z"},"containers":{"cna":{"title":"LoongArch: BPF: Sign extend kfunc call arguments","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Sign extend kfunc call arguments\n\nThe kfunc calls are native calls so they should follow LoongArch calling\nconventions. Sign extend its arguments properly to avoid kernel panic.\nThis is done by adding a new emit_abi_ext() helper. The emit_abi_ext()\nhelper performs extension in place meaning a value already store in the\ntarget register (Note: this is different from the existing sign_extend()\nhelper and thus we can't reuse it)."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"fd43edf357a3a1f5ed1c4bf450b60001c9091c39","versionType":"git"},{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"0d666db731e95890e0eda7ea61bc925fd2be90c6","versionType":"git"},{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"321993a874f571a94b5a596f1132f798c663b56e","versionType":"git"},{"version":"5dc615520c4dfb358245680f1904bad61116648e","status":"affected","lessThan":"3f5a238f24d7b75f9efe324d3539ad388f58536e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/net/bpf_jit.c","arch/loongarch/net/bpf_jit.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.64","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.4","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/loongarch/net/bpf_jit.c","arch/loongarch/net/bpf_jit.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/fd43edf357a3a1f5ed1c4bf450b60001c9091c39"},{"url":"https://git.kernel.org/stable/c/0d666db731e95890e0eda7ea61bc925fd2be90c6"},{"url":"https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56e"},{"url":"https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:55:32.205Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.6.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.12.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.18.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}