Answer in brief
CVE-2024-26712 records a Unknown severity vulnerability in powerpc/kasan: Fix addr error caused by page alignment. 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-2024-26712 records a Unknown severity vulnerability in powerpc/kasan: Fix addr error caused by page alignment. 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 | >=663c0c9496a69f80011205ba3194049bcafd681d <230e89b5ad0a33f530a2a976b3e5e4385cb27882 || >=663c0c9496a69f80011205ba3194049bcafd681d <2738e0aa2fb24a7ab9c878d912dc2b239738c6c6 || >=663c0c9496a69f80011205ba3194049bcafd681d <0c09912dd8387e228afcc5e34ac5d79b1e3a1058 || >=663c0c9496a69f80011205ba3194049bcafd681d <0516c06b19dc64807c10e01bb99b552bdf2d7dbe || >=663c0c9496a69f80011205ba3194049bcafd681d <70ef2ba1f4286b2b73675aeb424b590c92d57b25 || >=663c0c9496a69f80011205ba3194049bcafd681d <4a7aee96200ad281a5cc4cf5c7a2e2a49d2b97b0 || 5ce93076d8ee2a0fac3ad4adbd2e91b6197146db || >=5.3.6 <5.4 | 230e89b5ad0a33f530a2a976b3e5e4385cb27882, 2738e0aa2fb24a7ab9c878d912dc2b239738c6c6, 0c09912dd8387e228afcc5e34ac5d79b1e3a1058, 0516c06b19dc64807c10e01bb99b552bdf2d7dbe, 70ef2ba1f4286b2b73675aeb424b590c92d57b25, 4a7aee96200ad281a5cc4cf5c7a2e2a49d2b97b0, 5.4 |
| Linux/Linuxgeneric | 5.4 | Not reported |
Published upstream
Apr 3, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Fix addr error caused by page alignment In kasan_init_region, when k_start is not page aligned, at the begin of for loop, k_cur = k_start & PAGE_MASK is less than k_start, and then `va = block + k_cur - k_start` is less than block, the addr va is invalid, because the memory address space from va to block is not alloced by memblock_alloc, which will not be reserved by memblock_reserve later, it will be used by other places. As a result, memory overwriting occurs. for example: int __init __weak kasan_init_region(void *start, size_t size) { [...] /* if say block(dcd97000) k_start(feef7400) k_end(feeff3fe) */ block = memblock_alloc(k_end - k_start, PAGE_SIZE); [...] for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { /* at the begin of for loop * block(dcd97000) va(dcd96c00) k_cur(feef7000) k_start(feef7400) * va(dcd96c00) is less than block(dcd97000), va is invalid */ void *va = block + k_cur - k_start; [...] } [...] } Therefore, page alignment is performed on k_start before memblock_alloc() to ensure the validity of the VA address.
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 | >=663c0c9496a69f80011205ba3194049bcafd681d <230e89b5ad0a33f530a2a976b3e5e4385cb27882 || >=663c0c9496a69f80011205ba3194049bcafd681d <2738e0aa2fb24a7ab9c878d912dc2b239738c6c6 || >=663c0c9496a69f80011205ba3194049bcafd681d <0c09912dd8387e228afcc5e34ac5d79b1e3a1058 || >=663c0c9496a69f80011205ba3194049bcafd681d <0516c06b19dc64807c10e01bb99b552bdf2d7dbe || >=663c0c9496a69f80011205ba3194049bcafd681d <70ef2ba1f4286b2b73675aeb424b590c92d57b25 || >=663c0c9496a69f80011205ba3194049bcafd681d <4a7aee96200ad281a5cc4cf5c7a2e2a49d2b97b0 || 5ce93076d8ee2a0fac3ad4adbd2e91b6197146db || >=5.3.6 <5.4 | 230e89b5ad0a33f530a2a976b3e5e4385cb27882, 2738e0aa2fb24a7ab9c878d912dc2b239738c6c6, 0c09912dd8387e228afcc5e34ac5d79b1e3a1058, 0516c06b19dc64807c10e01bb99b552bdf2d7dbe, 70ef2ba1f4286b2b73675aeb424b590c92d57b25, 4a7aee96200ad281a5cc4cf5c7a2e2a49d2b97b0, 5.4 |
| Linux/Linuxgeneric | 5.4 | Not reported |
Published upstream
Apr 3, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Fix addr error caused by page alignment In kasan_init_region, when k_start is not page aligned, at the begin of for loop, k_cur = k_start & PAGE_MASK is less than k_start, and then `va = block + k_cur - k_start` is less than block, the addr va is invalid, because the memory address space from va to block is not alloced by memblock_alloc, which will not be reserved by memblock_reserve later, it will be used by other places. As a result, memory overwriting occurs. for example: int __init __weak kasan_init_region(void *start, size_t size) { [...] /* if say block(dcd97000) k_start(feef7400) k_end(feeff3fe) */ block = memblock_alloc(k_end - k_start, PAGE_SIZE); [...] for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { /* at the begin of for loop * block(dcd97000) va(dcd96c00) k_cur(feef7000) k_start(feef7400) * va(dcd96c00) is less than block(dcd97000), va is invalid */ void *va = block + k_cur - k_start; [...] } [...] } Therefore, page alignment is performed on k_start before memblock_alloc() to ensure the validity of the VA address.
Quoted source text, attributed separately from HOL analysis.