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CVE Vulnerability Details :
CVE-2026-43289
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-08 May, 2026 | 13:11
Updated At-11 May, 2026 | 22:21
Rejected At-
▼CVE Numbering Authority (CNA)
kexec: derive purgatory entry from symbol

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 [me@linux.beauty: move helper to avoid forward declaration, per Baoquan]

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • kernel/kexec_file.c
Default Status
unaffected
Versions
Affected
  • From f368aed4827bd4276c0e3664fb2cb815a8d7caf3 before 027797595a108726f4a0a45d225f603b0ffbd22b (git)
  • From d38e051ec6fd8650b139d9bc4b0b8b261953b263 before 1737d37ae1d2814e6cf0a1af87af3d41f0812b95 (git)
  • From 013027918a4efa807409fcb356009c117e4d181a before f736032c638a33a243e9126e617788f763d648f9 (git)
  • From 8652d44f466ad5772e7d1756e9457046189b0dfc before cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2 (git)
  • From 8652d44f466ad5772e7d1756e9457046189b0dfc before 875355152b33436907c2a6d2ffad1431fa86c62b (git)
  • From 8652d44f466ad5772e7d1756e9457046189b0dfc before 36eb314184a0ae74dd42914b47d2b9fc43be8034 (git)
  • From 8652d44f466ad5772e7d1756e9457046189b0dfc before 5226570bd252cea2e805a161cb0f75c204c3108a (git)
  • From 8652d44f466ad5772e7d1756e9457046189b0dfc before 480e1d5c64bb14441f79f2eb9421d5e26f91ea3d (git)
  • 4947a0eb7d642b6048559857964966016ef3aa8b (git)
  • b16bf76b382810257e3fb6278663a9d131b70197 (git)
  • cb1638618545182a01444b2b20a4ed6b9d2a8c8f (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • kernel/kexec_file.c
Default Status
affected
Versions
Affected
  • 6.4
Unaffected
  • From 0 before 6.4 (semver)
  • From 5.10.252 through 5.10.* (semver)
  • From 5.15.202 through 5.15.* (semver)
  • From 6.1.165 through 6.1.* (semver)
  • From 6.6.128 through 6.6.* (semver)
  • From 6.12.75 through 6.12.* (semver)
  • From 6.18.16 through 6.18.* (semver)
  • From 6.19.6 through 6.19.* (semver)
  • From 7.0 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://git.kernel.org/stable/c/027797595a108726f4a0a45d225f603b0ffbd22b
N/A
https://git.kernel.org/stable/c/1737d37ae1d2814e6cf0a1af87af3d41f0812b95
N/A
https://git.kernel.org/stable/c/f736032c638a33a243e9126e617788f763d648f9
N/A
https://git.kernel.org/stable/c/cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2
N/A
https://git.kernel.org/stable/c/875355152b33436907c2a6d2ffad1431fa86c62b
N/A
https://git.kernel.org/stable/c/36eb314184a0ae74dd42914b47d2b9fc43be8034
N/A
https://git.kernel.org/stable/c/5226570bd252cea2e805a161cb0f75c204c3108a
N/A
https://git.kernel.org/stable/c/480e1d5c64bb14441f79f2eb9421d5e26f91ea3d
N/A
Hyperlink: https://git.kernel.org/stable/c/027797595a108726f4a0a45d225f603b0ffbd22b
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/1737d37ae1d2814e6cf0a1af87af3d41f0812b95
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/f736032c638a33a243e9126e617788f763d648f9
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/cfccd3b8c51bc57a8a6fcb2fd30453afae5bc0d2
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/875355152b33436907c2a6d2ffad1431fa86c62b
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/36eb314184a0ae74dd42914b47d2b9fc43be8034
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/5226570bd252cea2e805a161cb0f75c204c3108a
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/480e1d5c64bb14441f79f2eb9421d5e26f91ea3d
Resource: N/A
Details not found