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| author | Hajime Tazaki <[email protected]> | 2024-11-08 22:28:34 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-11-12 01:20:23 +0000 |
| commit | 247d720b2c5d22f7281437fd6054a138256986ba (patch) | |
| tree | c076622a29135a53b87701f67a739c571171fae9 /rust/helpers/mutex.c | |
| parent | ocfs2: fix UBSAN warning in ocfs2_verify_volume() (diff) | |
| download | kernel-247d720b2c5d22f7281437fd6054a138256986ba.tar.gz kernel-247d720b2c5d22f7281437fd6054a138256986ba.zip | |
nommu: pass NULL argument to vma_iter_prealloc()
When deleting a vma entry from a maple tree, it has to pass NULL to
vma_iter_prealloc() in order to calculate internal state of the tree, but
it passed a wrong argument. As a result, nommu kernels crashed upon
accessing a vma iterator, such as acct_collect() reading the size of vma
entries after do_munmap().
This commit fixes this issue by passing a right argument to the
preallocation call.
Link: https://lkml.kernel.org/r/[email protected]
Fixes: b5df09226450 ("mm: set up vma iterator for vma_iter_prealloc() calls")
Signed-off-by: Hajime Tazaki <[email protected]>
Reviewed-by: Liam R. Howlett <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'rust/helpers/mutex.c')
0 files changed, 0 insertions, 0 deletions