{bp-20049} fs/procfs: fix buffer overflow in mount_sprintf - #20079
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vsnprintf() returns the total formatted string length even when truncated to info->line. Passing this untruncated length to procfs_memcpy causes a read beyond the 64-byte line staging buffer. Fixes apache#20011 Signed-off-by: Hritik Naik <hritiknaik16@gmail.com>
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xiaoxiang781216
September 7, 2026 08:46
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Summary
vsnprintf() returns the total formatted string length even when truncated to info->line. Passing this untruncated length to procfs_memcpy causes a read beyond the 64-byte line staging buffer.
Fixes #20011
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