{"id":"CVE-2026-43261","summary":"arm64: Add support for TSV110 Spectre-BHB mitigation","details":"In the Linux kernel, the following vulnerability has been resolved:\n\narm64: Add support for TSV110 Spectre-BHB mitigation\n\nThe TSV110 processor is vulnerable to the Spectre-BHB (Branch History\nBuffer) attack, which can be exploited to leak information through\nbranch prediction side channels. This commit adds the MIDR of TSV110\nto the list for software mitigation.","modified":"2026-11-13T02:30:18.879735479Z","published":"2026-05-06T11:28:48.823Z","related":["SUSE-SU-2026:22108-1","SUSE-SU-2026:22137-1","SUSE-SU-2026:22433-1","SUSE-SU-2026:22458-1","SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","SUSE-SU-2026:2482-1","SUSE-SU-2026:2591-1","openSUSE-SU-2026:21555-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43261.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/598c11dd4f4a9de31d854fcb9702f54c1c70f0d0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5dbe1f14359735fa50ba0dd4a496125b5bc7f422"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a8d0ad5d990b050a6db74218a34b5529085e16b8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad0c356cae164ed5dbd1f4cfd438e46faa5292cb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cccf96c49f61e47d9332d6a4d1c7fe9a2df44440"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e3baa5d4b361276efeb87b20d8beced451a7dbd5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd51d47fcacec3ca027eb65d8c44853d3b6cea95"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd7e360845d331f542854d552469544182e61134"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43261.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43261"},{"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":"e192c8baa69ac8a5585d61ac535aa1e5eb795e80"},{"fixed":"598c11dd4f4a9de31d854fcb9702f54c1c70f0d0"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4bbfd0c280254b273c564767021bb9b0f945148e"},{"fixed":"a8d0ad5d990b050a6db74218a34b5529085e16b8"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"558c303c9734af5a813739cd284879227f7297d2"},{"fixed":"cccf96c49f61e47d9332d6a4d1c7fe9a2df44440"},{"fixed":"fd7e360845d331f542854d552469544182e61134"},{"fixed":"5dbe1f14359735fa50ba0dd4a496125b5bc7f422"},{"fixed":"fd51d47fcacec3ca027eb65d8c44853d3b6cea95"},{"fixed":"ad0c356cae164ed5dbd1f4cfd438e46faa5292cb"},{"fixed":"e3baa5d4b361276efeb87b20d8beced451a7dbd5"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.10.105"},{"fixed":"5.10.252"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.15.28"},{"fixed":"5.15.202"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.9.310"},{"fixed":"4.10"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.14.275"},{"fixed":"4.15"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.19.236"},{"fixed":"4.20"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.4.186"},{"fixed":"5.5"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5.16.14"},{"fixed":"5.17"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4dd8aae585a51a1d276911fe19096ad90144e9fe"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3e3904125fccd042fda24294624e8f66699fd06d"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c20d551744797000c4af993f7d59ef8c69732949"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9013fd4bc958b33c3b4d5a2eaf4ded9857600395"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0b2bf1b37b5ebd90e69e30d8c2d6e1cd0c1f37b4"}]}],"versions":["v5.10.251","v5.10.250","v5.10.249","v5.10.248","v5.10.247","v5.10.246","v5.10.245","v5.10.244","v5.10.243","v5.10.242","v5.10.241","v5.10.240","v5.10.239","v5.10.238","v5.10.237","v5.10.236","v5.10.235","v5.10.234","v5.10.233","v5.10.232","v5.10.231","v5.10.230","v5.10.229","v5.10.228","v5.10.227","v5.10.226","v5.10.225","v5.10.224","v5.10.223","v5.10.222","v5.10.221","v5.10.220","v5.10.219","v5.10.218","v5.10.217","v5.10.216","v5.10.215","v5.10.214","v5.10.213","v5.10.212","v5.10.211","v5.10.210","v5.10.209","v5.10.208","v5.10.207","v5.10.206","v5.10.205","v5.10.204","v5.10.203","v5.10.202","v5.10.201","v5.10.200","v5.10.199","v5.10.198","v5.10.197","v5.10.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