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DAOS-15563 engine: Fix dss_chore use-after-free (#14096) #14196

Merged
merged 1 commit into from
Apr 19, 2024
Merged

DAOS-15563 engine: Fix dss_chore use-after-free (#14096) #14196

merged 1 commit into from
Apr 19, 2024

Commits on Apr 19, 2024

  1. DAOS-15563 engine: Fix dss_chore use-after-free (#14096) 

    When dss_chore.cho_func returns DSS_CHORE_DONE, the dss_chore object may
have been freed already. For instance, in the dtx_rpc_helper case,
dtx_check may have already returned, freeing (strictly speaking,
releasing) its stack frame that contains the dca.dca_chore object.
Hence, after calling chore->cho_func, dss_chore_queue_ult should only
dereference chore if the return value is DSS_CHORE_YIELD.


Signed-off-by: Li Wei <wei.g.li@intel.com>
    @liw @jolivier23
    liw authored and jolivier23 committed Apr 19, 2024
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