CVE-2023-52976 (GCVE-0-2023-52976)
Vulnerability from cvelistv5
Published
2025-03-27 16:43
Modified
2025-05-04 12:49
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: efi: fix potential NULL deref in efi_mem_reserve_persistent When iterating on a linked list, a result of memremap is dereferenced without checking it for NULL. This patch adds a check that falls back on allocating a new page in case memremap doesn't succeed. Found by Linux Verification Center (linuxtesting.org) with SVACE. [ardb: return -ENOMEM instead of breaking out of the loop]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87d4ff18738fd71e7e3c10827c80257da6283697Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/966d47e1f27c45507c5df82b2a2157e5a4fd3909Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a2e6a9ff89f13666a1c3ff7195612ab949ea9afcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d8fc0b5fb3e816a4a8684bcd3ed02cbef0fce23cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d92a25627bcdf264183670da73c9a60c0bac327ePatch
Impacted products
Vendor Product Version
Linux Linux Version: 18df7577adae6c6c778bf774b3aebcacbc1fb439
Version: 18df7577adae6c6c778bf774b3aebcacbc1fb439
Version: 18df7577adae6c6c778bf774b3aebcacbc1fb439
Version: 18df7577adae6c6c778bf774b3aebcacbc1fb439
Version: 18df7577adae6c6c778bf774b3aebcacbc1fb439
Version: b5961ecad7121fec138ebee7d9eba4863f9dc6e7
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   Linux Linux Version: 5.2
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{
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          "programFiles": [
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    "dateReserved": "2025-03-27T16:40:15.738Z",
    "dateUpdated": "2025-05-04T12:49:57.192Z",
    "state": "PUBLISHED"
  },
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  }
}


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