CVE-2026-23156
efivarfs: fix error propagation in efivar_entry_get()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: efivarfs: fix error propagation in efivar_entry_get() efivar_entry_get() always returns success even if the underlying __efivar_entry_get() fails, masking errors. This may result in uninitialized heap memory being copied to userspace in the efivarfs_file_read() path. Fix it by returning the error from __efivar_entry_get().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 14, 2026 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
2d82e6227ea189c0589e7383a36616ac2a2d248c < 3960f1754664661a970dc9ebbab44ff93a0b4c42 2d82e6227ea189c0589e7383a36616ac2a2d248c < 510a16f1c5c1690b33504052bc13fbc2772c23f8 2d82e6227ea189c0589e7383a36616ac2a2d248c < 89b8ca709eeeabcc11ebba64806677873a2787a8 2d82e6227ea189c0589e7383a36616ac2a2d248c < e4e15a0a4403c96d9898d8398f0640421df9cb16 2d82e6227ea189c0589e7383a36616ac2a2d248c < 4b22ec1685ce1fc0d862dcda3225d852fb107995
Linux / Linux
6.0
References
git.kernel.org: https://git.kernel.org/stable/c/3960f1754664661a970dc9ebbab44ff93a0b4c42 git.kernel.org: https://git.kernel.org/stable/c/510a16f1c5c1690b33504052bc13fbc2772c23f8 git.kernel.org: https://git.kernel.org/stable/c/89b8ca709eeeabcc11ebba64806677873a2787a8 git.kernel.org: https://git.kernel.org/stable/c/e4e15a0a4403c96d9898d8398f0640421df9cb16 git.kernel.org: https://git.kernel.org/stable/c/4b22ec1685ce1fc0d862dcda3225d852fb107995