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| author | Matthew Wilcox (Oracle) <[email protected]> | 2020-01-17 22:45:12 +0000 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <[email protected]> | 2020-01-18 03:32:24 +0000 |
| commit | 430f24f94c8a174d411a550d7b5529301922e67a (patch) | |
| tree | 7a23f31ee6f3bca6a09e1ce0c23fa62d4e65c5e1 /lib/strncpy_from_user.c | |
| parent | XArray: Add wrappers for nested spinlocks (diff) | |
| download | kernel-430f24f94c8a174d411a550d7b5529301922e67a.tar.gz kernel-430f24f94c8a174d411a550d7b5529301922e67a.zip | |
XArray: Fix infinite loop with entry at ULONG_MAX
If there is an entry at ULONG_MAX, xa_for_each() will overflow the
'index + 1' in xa_find_after() and wrap around to 0. Catch this case
and terminate the loop by returning NULL.
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Cc: [email protected]
Diffstat (limited to 'lib/strncpy_from_user.c')
0 files changed, 0 insertions, 0 deletions