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Code Issues Releases Activity

4088 use after free in arc_release()

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illumos/illumos-gate@ccc22e1304
This commit is contained in:
Andriy Gapon 2013-11-20 10:59:41 +00:00
parent c7eb3b0d87
commit dca9247125
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor-sys/illumos/dist/; revision=258377
1 changed files with 1 additions and 1 deletions
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2
uts/common/fs/zfs/arc.c
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@ -3332,6 +3332,7 @@ arc_release(arc_buf_t *buf, void *tag)
if (l2hdr) {
mutex_enter(&l2arc_buflist_mtx);
hdr->b_l2hdr = NULL;
list_remove(l2hdr->b_dev->l2ad_buflist, hdr);
}
buf_size = hdr->b_size;
@ -3415,7 +3416,6 @@ arc_release(arc_buf_t *buf, void *tag)
if (l2hdr) {
ARCSTAT_INCR(arcstat_l2_asize, -l2hdr->b_asize);
list_remove(l2hdr->b_dev->l2ad_buflist, hdr);
kmem_free(l2hdr, sizeof (l2arc_buf_hdr_t));
ARCSTAT_INCR(arcstat_l2_size, -buf_size);
mutex_exit(&l2arc_buflist_mtx);