Answer in brief
CVE-2026-43289 records a Unknown severity vulnerability in kexec: derive purgatory entry from symbol. 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 | >=f368aed4827bd4276c0e3664fb2cb815a8d7caf3 <027797595a108726f4a0a45d225f603b0ffbd22b || >=d38e051ec6fd8650b139d9bc4b0b8b261953b263 <1737d37ae1d2814e6cf0a1af87af3d41f0812b95 || >=013027918a4efa807409fcb356009c117e4d181a <f736032c638a33a243e9126e617788f763d648f9 || >=8652d44f466ad5772e7d1756e9457046189b0dfc <cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2 || >=8652d44f466ad5772e7d1756e9457046189b0dfc <875355152b33436907c2a6d2ffad1431fa86c62b || >=8652d44f466ad5772e7d1756e9457046189b0dfc <36eb314184a0ae74dd42914b47d2b9fc43be8034 || >=8652d44f466ad5772e7d1756e9457046189b0dfc <5226570bd252cea2e805a161cb0f75c204c3108a || >=8652d44f466ad5772e7d1756e9457046189b0dfc <480e1d5c64bb14441f79f2eb9421d5e26f91ea3d || 4947a0eb7d642b6048559857964966016ef3aa8b || b16bf76b382810257e3fb6278663a9d131b70197 || cb1638618545182a01444b2b20a4ed6b9d2a8c8f || >=5.10.185 <5.10.252 || >=5.15.118 <5.15.202 || >=6.1.35 <6.1.165 || >=4.19.287 <4.20 || >=5.4.248 <5.5 || >=6.3.9 <6.4 | 027797595a108726f4a0a45d225f603b0ffbd22b, 1737d37ae1d2814e6cf0a1af87af3d41f0812b95, f736032c638a33a243e9126e617788f763d648f9, cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2, 875355152b33436907c2a6d2ffad1431fa86c62b, 36eb314184a0ae74dd42914b47d2b9fc43be8034, 5226570bd252cea2e805a161cb0f75c204c3108a, 480e1d5c64bb14441f79f2eb9421d5e26f91ea3d, 5.10.252, 5.15.202, 6.1.165, 4.20, 5.5, 6.4 |
| Linux/Linuxgeneric | 6.4 | Not reported |
Published upstream
May 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
In the Linux kernel, the following vulnerability has been resolved: kexec: derive purgatory entry from symbol kexec_load_purgatory() derives image->start by locating e_entry inside an SHF_EXECINSTR section. If the purgatory object contains multiple executable sections with overlapping sh_addr, the entrypoint check can match more than once and trigger a WARN. Derive the entry section from the purgatory_start symbol when present and compute image->start from its final placement. Keep the existing e_entry fallback for purgatories that do not expose the symbol. WARNING: kernel/kexec_file.c:1009 at kexec_load_purgatory+0x395/0x3c0, CPU#10: kexec/1784 Call Trace: <TASK> bzImage64_load+0x133/0xa00 __do_sys_kexec_file_load+0x2b3/0x5c0 do_syscall_64+0x81/0x610 entry_SYSCALL_64_after_hwframe+0x76/0x7e [[email protected]: move helper to avoid forward declaration, per Baoquan]
Quoted source text, attributed separately from HOL analysis.