Bug 2396927 (CVE-2025-39858) - CVE-2025-39858 kernel: eth: mlx4: Fix IS_ERR() vs NULL check bug in mlx4_en_create_rx_ring
Summary: CVE-2025-39858 kernel: eth: mlx4: Fix IS_ERR() vs NULL check bug in mlx4_en_c...
Keywords:
Status: NEW
Alias: CVE-2025-39858
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-19 16:02 UTC by OSIDB Bzimport
Modified: 2025-09-26 16:09 UTC (History)
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Description OSIDB Bzimport 2025-09-19 16:02:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

eth: mlx4: Fix IS_ERR() vs NULL check bug in mlx4_en_create_rx_ring

Replace NULL check with IS_ERR() check after calling page_pool_create()
since this function returns error pointers (ERR_PTR).
Using NULL check could lead to invalid pointer dereference.
Comment 1 Jon Moroney 2025-09-19 17:06:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091905-CVE-2025-39858-393c@gregkh/T
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