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eal: rte_dev_probe() rollback can call local_dev_remove(NULL)

DPDK/core Bug 2111 [email protected] 1 participant 1 message Nov 12

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https://bugs.dpdk.org/show_bug.cgi?id=2111

            Bug ID: 2111
           Summary: eal: rte_dev_probe() rollback can call
                    local_dev_remove(NULL)
           Product: DPDK
           Version: 26.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: minor
          Priority: Normal
         Component: core
          Assignee: [email protected]
          Reporter: [email protected]

Target Milestone: ---

local_dev_probe() sets *new_dev = NULL (lib/eal/common/eal_common_dev.c:186) and can return at :252 without setting it. rte_dev_probe() continues on -EEXIST (:321); if the secondary sync then fails it reaches rollback: and calls local_dev_remove(dev) (:369) with dev == NULL, which dereferences it (:405). Narrow path.

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