CVE-2026-72013
CVE CVE-2026-72013EUVD EUVD-2026-59112Published 2026-08-15T05:51:41.000ZLast changed 2026-08-17T05:06:35.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent NULL pointer dereference in machine_kexec_prepare() A NULL pointer dereference issue is noticed in riscv's machine_kexec_prepare(), where image->segment[i].buf might be NULL and copied unchecked. The NULL buf comes from ima_add_kexec_buffer(), where kbuf is added by kexec_add_buffer(), but kbuf.buffer is NULL, then it is copied without a check in machine_kexec_prepare(): kexec_file_load -> kimage_file_alloc_init() -> kimage_file_prepare_segments() -> ima_add_kexec_buffer() -> kexec_add_buffer() -> machine_kexec_prepare() -> memcpy() Address this by adding a check before the data copy attempt.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <6ad6954492697681ebcfc1beb0eb384406cd4b65; patch: 6.18.40; patch: 6.1.178; patch: 0; patch: 7.2; b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <81bbcff0c053c4f5c711c31a9b72fc492bd96c3f; 5.19; patch: 6.6.145; patch: 7.1.5; 5.17.15 <5.18; 3ca8a07f141fd8eec347a82bdfa4b94164f2bb97; 4211742f0f9e083188f4f0ada00d6eeeef31b7c7 <606cc45e871e34b80a2f63874f069387a5b44176; 5.18.4 <5.19; b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <eadd0c2c76aee6a738f17f251434c77db3c606c8; b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <c462e15497dc40abe369b3be7a2c91ac5d1be6f9; 5.15.47 <5.15.212; b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <d5b2752a17efc165793ae38f2c24b5ed9c04ffde; 3ba83e46b591381e718007f55c9f831fd0cd7ee8; patch: 6.12.97; patch: 5.15.212; b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <b5f92cc4e24a298bf390b0b189a4b888c0900161
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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