wasm2c-tableflip

wasm2c 沙箱逃逸：访客模块在主机上运行 shell 命令 阅读博客：trustsig.eu/blog wasm2c/wasm-rt-impl-tableops.inc 中的 wasmrtallocatefuncreftable 会根据模块声明的元素数量设置 table-size，然后忽略 calloc 的结果。当分配失败时，表会留下 data == NULL 以及完整的声明 size，因此所有边界检查仍会通过，而 table-datai 会变成绝对地址 i sizeofwasmrtfuncreft。 元素数量来自访客，因此访客可以选择分配大小并强制分配失败。 复现...

CVE-2026-43148

The CVE-2026-43148 issue concerns the Linux kernel, specifically the powerpc/smp code path for parse_thread_groups(). A missing check for the return value of kcalloc() could allow a NULL pointer dereference when the allocation result is later used by of_property_read_u32_array(). The vulnerabilit...

CVE-2026-43148 powerpc/smp: Add check for kcalloc() failure in parse_thread_groups()

In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: Add check for kcalloc failure in parsethreadgroups As kcalloc may fail, check its return value to avoid a NULL pointer dereference when passing it to ofpropertyreadu32array...

OESA-2022-2124 libarchive security update

is an open-source BSD-licensed C programming library that provides streaming access to a variety of different archive formats, including tar, cpio, pax, zip, and ISO9660 images. The distribution also includes bsdtar and bsdcpio, full-featured implementations of tar and cpio that use . Security...

AZL-11470 CVE-2022-36227 affecting package libarchive for versions less than 3.6.1-2

In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the...

UBUNTU-CVE-2022-36227

In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the...

libarchive 代码问题漏洞

libarchive is a multi-format archive and compression library. libarchive A code execution vulnerability exists in libarchive version 3.6.1, which stems from a failure to check for errors after calling the calloc function, i.e., if the function fails, the calloc function returns a NULL pointer,...