Description (CNA)
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]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 18df7577adae6c6c778bf774b3aebcacbc1fb439 before d92a25627bcdf264183670da73c9a60c0bac327e; affected 18df7577adae6c6c778bf774b3aebcacbc1fb439 before 87d4ff18738fd71e7e3c10827c80257da6283697; affected 18df7577adae6c6c778bf774b3aebcacbc1fb439 before d8fc0b5fb3e816a4a8684bcd3ed02cbef0fce23c; affected 18df7577adae6c6c778bf774b3aebcacbc1fb439 before a2e6a9ff89f13666a1c3ff7195612ab949ea9afc; affected 18df7577adae6c6c778bf774b3aebcacbc1fb439 before 966d47e1f27c45507c5df82b2a2157e5a4fd3909; affected b5961ecad7121fec138ebee7d9eba4863f9dc6e7; affected 5.1.16 before 5.2 |
| Linux / Linux | affected 5.2; unaffected 0 before 5.2; unaffected 5.4.232 through 5.4.*; unaffected 5.10.168 through 5.10.*; unaffected 5.15.93 through 5.15.*; unaffected 6.1.11 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d92a25627bcdf264183670da73c9a60c0bac327e
- https://git.kernel.org/stable/c/87d4ff18738fd71e7e3c10827c80257da6283697
- https://git.kernel.org/stable/c/d8fc0b5fb3e816a4a8684bcd3ed02cbef0fce23c
- https://git.kernel.org/stable/c/a2e6a9ff89f13666a1c3ff7195612ab949ea9afc
- https://git.kernel.org/stable/c/966d47e1f27c45507c5df82b2a2157e5a4fd3909
ADP enrichment
No English description supplied.
No references supplied.