Description
In the Linux kernel, the following vulnerability has been resolved: virt: sev-guest: Explicitly leak pages in unknown state When set_memory_{encrypted,decrypted}() fail, the user cannot know at which point the function failed, meaning that the pages are left in an unknown state from the point of view of the caller. Since the pages may be left in an unencrypted state, they are not suitable for general use, and cannot be returned safely to the buddy allocator. Avoid the issue by never freeing the pages, and then do the proper accounting by calling snp_leak_pages().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
3e385c0d6ce88ac9916dcf84267bd5855d830748 to < bee400ad4f4259c9c0758e4f1960a1eed6f6f9f0affected3e385c0d6ce88ac9916dcf84267bd5855d830748 to < 3d0cd0065deeb054b4b29236432e851806b7cc81affected3e385c0d6ce88ac9916dcf84267bd5855d830748 to < fd948c3f96b18ff9ba7d3e8eae13d196593e1aafaffected0b16521f95c875e79d657cb8d6911c15080dbb80affected6.13.8 to < 6.14affected
Linux Linux
Default version status: affected
6.14affected0 to < 6.14unaffected6.18.34 to ≤ 6.18.*unaffected7.0.11 to ≤ 7.0.*unaffected7.1 to ≤ *unaffected