Answer in brief
CVE-2026-72013 records a Unknown severity vulnerability in riscv: Prevent NULL pointer dereference in machine_kexec_prepare(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-72013 records a Unknown severity vulnerability in riscv: Prevent NULL pointer dereference in machine_kexec_prepare(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4211742f0f9e083188f4f0ada00d6eeeef31b7c7 <606cc45e871e34b80a2f63874f069387a5b44176 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <c462e15497dc40abe369b3be7a2c91ac5d1be6f9 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <b5f92cc4e24a298bf390b0b189a4b888c0900161 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <6ad6954492697681ebcfc1beb0eb384406cd4b65 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <eadd0c2c76aee6a738f17f251434c77db3c606c8 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <d5b2752a17efc165793ae38f2c24b5ed9c04ffde || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <81bbcff0c053c4f5c711c31a9b72fc492bd96c3f || 3ca8a07f141fd8eec347a82bdfa4b94164f2bb97 || 3ba83e46b591381e718007f55c9f831fd0cd7ee8 || >=5.15.47 <5.15.212 || >=5.17.15 <5.18 || >=5.18.4 <5.19 | 606cc45e871e34b80a2f63874f069387a5b44176, c462e15497dc40abe369b3be7a2c91ac5d1be6f9, b5f92cc4e24a298bf390b0b189a4b888c0900161, 6ad6954492697681ebcfc1beb0eb384406cd4b65, eadd0c2c76aee6a738f17f251434c77db3c606c8, d5b2752a17efc165793ae38f2c24b5ed9c04ffde, 81bbcff0c053c4f5c711c31a9b72fc492bd96c3f, 5.15.212, 5.18, 5.19 |
| Linux/Linuxgeneric | 5.19 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4211742f0f9e083188f4f0ada00d6eeeef31b7c7 <606cc45e871e34b80a2f63874f069387a5b44176 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <c462e15497dc40abe369b3be7a2c91ac5d1be6f9 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <b5f92cc4e24a298bf390b0b189a4b888c0900161 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <6ad6954492697681ebcfc1beb0eb384406cd4b65 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <eadd0c2c76aee6a738f17f251434c77db3c606c8 || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <d5b2752a17efc165793ae38f2c24b5ed9c04ffde || >=b7fb4d78a6ade6026d9e5cf438c2a46ab962e032 <81bbcff0c053c4f5c711c31a9b72fc492bd96c3f || 3ca8a07f141fd8eec347a82bdfa4b94164f2bb97 || 3ba83e46b591381e718007f55c9f831fd0cd7ee8 || >=5.15.47 <5.15.212 || >=5.17.15 <5.18 || >=5.18.4 <5.19 | 606cc45e871e34b80a2f63874f069387a5b44176, c462e15497dc40abe369b3be7a2c91ac5d1be6f9, b5f92cc4e24a298bf390b0b189a4b888c0900161, 6ad6954492697681ebcfc1beb0eb384406cd4b65, eadd0c2c76aee6a738f17f251434c77db3c606c8, d5b2752a17efc165793ae38f2c24b5ed9c04ffde, 81bbcff0c053c4f5c711c31a9b72fc492bd96c3f, 5.15.212, 5.18, 5.19 |
| Linux/Linuxgeneric | 5.19 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.