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| author | Soumya Koduri <skoduri@redhat.com> | 2019-01-09 21:06:49 +0530 |
|---|---|---|
| committer | Soumya Koduri <skoduri@redhat.com> | 2019-01-09 21:08:39 +0530 |
| commit | cc486da3ebb00ac4730df4ae03d04ec64e0e965c (patch) | |
| tree | 10dfa56b3e958f1fb7cefb5c2dd1dd98ac3d81c8 | |
| parent | 94807aacbe488863ad2016f6abfdf404fe769bf8 (diff) | |
leases: Reset lease_ctx->timer post deletion
To avoid use_after_free, reset lease_ctx->timer back to NULL
after the structure has been freed.
Change-Id: Icd213ec809b8af934afdb519c335a4680a1d6cdc
updates: bz#1655532
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
(cherry picked from commit a9b0003c717087ff168bc143c70559162e53e0d5)
| -rw-r--r-- | xlators/features/leases/src/leases-internal.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/xlators/features/leases/src/leases-internal.c b/xlators/features/leases/src/leases-internal.c index 8695c9b2538..61928597f8f 100644 --- a/xlators/features/leases/src/leases-internal.c +++ b/xlators/features/leases/src/leases-internal.c @@ -694,6 +694,7 @@ __remove_lease (xlator_t *this, inode_t *inode, lease_inode_ctx_t *lease_ctx, if (lease_ctx->lease_cnt == 0 && lease_ctx->timer) { ret = gf_tw_del_timer (priv->timer_wheel, lease_ctx->timer); lease_ctx->recall_in_progress = _gf_false; + lease_ctx->timer = NULL; } out: return ret; |