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87 lines
3.3 KiB
87 lines
3.3 KiB
From 7d87933f648092ae55d57a96fd06e3df975d764c Mon Sep 17 00:00:00 2001 |
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From: Ashish Pandey <aspandey@redhat.com> |
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Date: Tue, 18 Aug 2020 10:33:48 +0530 |
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Subject: [PATCH 463/465] cluster/ec: Change handling of heal failure to avoid |
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crash |
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Problem: |
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ec_getxattr_heal_cbk was called with NULL as second argument |
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in case heal was failing. |
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This function was dereferencing "cookie" argument which caused crash. |
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Solution: |
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Cookie is changed to carry the value that was supposed to be |
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stored in fop->data, so even in the case when fop is NULL in error |
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case, there won't be any NULL dereference. |
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Thanks to Xavi for the suggestion about the fix. |
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>Upstream patch: https://review.gluster.org/#/c/glusterfs/+/23050/ |
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>fixes: bz#1729085 |
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Change-Id: I0798000d5cadb17c3c2fbfa1baf77033ffc2bb8c |
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BUG: 1852736 |
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Reviewed-on: https://code.engineering.redhat.com/gerrit/209012 |
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Tested-by: Ashish Pandey <aspandey@redhat.com> |
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Tested-by: RHGS Build Bot <nigelb@redhat.com> |
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Reviewed-by: Xavi Hernandez Juan <xhernandez@redhat.com> |
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--- |
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xlators/cluster/ec/src/ec-heal.c | 11 ++++++----- |
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xlators/cluster/ec/src/ec-inode-read.c | 4 ++-- |
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2 files changed, 8 insertions(+), 7 deletions(-) |
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diff --git a/xlators/cluster/ec/src/ec-heal.c b/xlators/cluster/ec/src/ec-heal.c |
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index 7d25853..6e6948b 100644 |
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--- a/xlators/cluster/ec/src/ec-heal.c |
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+++ b/xlators/cluster/ec/src/ec-heal.c |
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@@ -1966,7 +1966,7 @@ ec_manager_heal_block(ec_fop_data_t *fop, int32_t state) |
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case EC_STATE_REPORT: |
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if (fop->cbks.heal) { |
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- fop->cbks.heal(fop->req_frame, fop, fop->xl, 0, 0, |
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+ fop->cbks.heal(fop->req_frame, fop->data, fop->xl, 0, 0, |
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(heal->good | heal->bad), heal->good, heal->bad, |
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0, NULL); |
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} |
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@@ -2022,10 +2022,11 @@ ec_heal_block_done(call_frame_t *frame, void *cookie, xlator_t *this, |
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uintptr_t good, uintptr_t bad, uint32_t pending, |
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dict_t *xdata) |
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{ |
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- ec_fop_data_t *fop = cookie; |
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- ec_heal_t *heal = fop->data; |
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+ ec_heal_t *heal = cookie; |
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- fop->heal = NULL; |
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+ if (heal->fop) { |
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+ heal->fop->heal = NULL; |
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+ } |
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heal->fop = NULL; |
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heal->error = op_ret < 0 ? op_errno : 0; |
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syncbarrier_wake(heal->data); |
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@@ -2669,7 +2670,7 @@ ec_heal_do(xlator_t *this, void *data, loc_t *loc, int32_t partial) |
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out: |
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ec_reset_entry_healing(fop); |
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if (fop->cbks.heal) { |
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- fop->cbks.heal(fop->req_frame, fop, fop->xl, op_ret, op_errno, |
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+ fop->cbks.heal(fop->req_frame, fop->data, fop->xl, op_ret, op_errno, |
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ec_char_array_to_mask(participants, ec->nodes), |
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mgood & good, mbad & bad, pending, NULL); |
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} |
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diff --git a/xlators/cluster/ec/src/ec-inode-read.c b/xlators/cluster/ec/src/ec-inode-read.c |
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index e82e8f6..c50d0ad 100644 |
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--- a/xlators/cluster/ec/src/ec-inode-read.c |
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+++ b/xlators/cluster/ec/src/ec-inode-read.c |
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@@ -396,8 +396,8 @@ ec_getxattr_heal_cbk(call_frame_t *frame, void *cookie, xlator_t *xl, |
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uintptr_t good, uintptr_t bad, uint32_t pending, |
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dict_t *xdata) |
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{ |
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- ec_fop_data_t *fop = cookie; |
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- fop_getxattr_cbk_t func = fop->data; |
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+ fop_getxattr_cbk_t func = cookie; |
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+ |
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ec_t *ec = xl->private; |
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dict_t *dict = NULL; |
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char *str; |
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-- |
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1.8.3.1 |
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