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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-03-30 08:55:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-03-30 08:55:47 -0700 |
| commit | a080642d2f831cc34b68663c0db1c447d3807421 (patch) | |
| tree | 6fc9b8508e491f37e742c6bef4149dc65c50399f /drivers/block/xen-blkback | |
| parent | 1e43c377a79f9189fea8f2711b399d4e8b4e609b (diff) | |
| parent | a846738f8c3788d846ed1f587270d2f2e3d32432 (diff) | |
Merge tag 'for-linus-5.12b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"One Xen related security fix (XSA-371)"
* tag 'for-linus-5.12b-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen-blkback: don't leak persistent grants from xen_blkbk_map()
Diffstat (limited to 'drivers/block/xen-blkback')
| -rw-r--r-- | drivers/block/xen-blkback/blkback.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 1cdf09ff67b6..14e452896d04 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -891,7 +891,7 @@ next: out: for (i = last_map; i < num; i++) { /* Don't zap current batch's valid persistent grants. */ - if(i >= last_map + segs_to_map) + if(i >= map_until) pages[i]->persistent_gnt = NULL; pages[i]->handle = BLKBACK_INVALID_HANDLE; } |