In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
LoongArch: BPF: Refactor jump offset calculation in tail call<\/p>\n
The old macro-based jmp_offset calculation derives the jump distance
\nfrom a stale prior-pass code stride, which can lead to wrong branch
\noffsets and soft lockups under extra JIT passes.<\/p>\n
Fix this by calculating the offset directly on the absolute target:
\n“ctx->offset[insn + 1] – ctx->idx”.<\/p>\n
To avoid a false 16-bit range check abort during size estimation, add
\na “ctx->image == NULL” guard to inject a safe dummy offset.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
LoongArch: BPF: Refactor jump offset calculation in tail call<\/p>\n
The old macro-based jmp_offset calculation derives the jump distance<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24593","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24593","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=24593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}