In the Linux kernel, the following vulnerability has been resolved: bootconfig: use memblock_free_late to free xbc memory to buddy On the time to free xbc memory in xbc_exit(), memblock may has han…
High CVSS 7.8
Summary
In the Linux kernel, the following vulnerability has been resolved: bootconfig: use memblock_free_late to free xbc memory to buddy On the time to free xbc memory in xbc_exit(), memblock may has handed over memory to buddy allocator. So it doesn't make sense to free memory back to memblock. memblock_free() called by xbc_exit() even causes UAF bugs on architectures with CONFIG_ARCH_KEEP_MEMBLOCK disabled like x86. Following KASAN logs shows this case. This patch fixes the xbc memory free probl…
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://git.kernel.org/stable/c/1e7feb31a18c197d63a5e606025ed63c762f8918 Patch
- https://git.kernel.org/stable/c/5a7dfb8fcd3f29fc93161100179b27f24f3d5f35 Patch
- https://git.kernel.org/stable/c/89f9a1e876b5a7ad884918c03a46831af202c8a0 Patch
- https://git.kernel.org/stable/c/e46d3be714ad9652480c6db129ab8125e2d20ab7 Patch
- https://git.kernel.org/stable/c/1e7feb31a18c197d63a5e606025ed63c762f8918 Patch
- https://git.kernel.org/stable/c/5a7dfb8fcd3f29fc93161100179b27f24f3d5f35 Patch
- https://git.kernel.org/stable/c/89f9a1e876b5a7ad884918c03a46831af202c8a0 Patch
- https://git.kernel.org/stable/c/e46d3be714ad9652480c6db129ab8125e2d20ab7 Patch
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
Timeline
- nvd_ingest NVD