CVE-2022-48637 (GCVE-0-2022-48637)
Vulnerability from cvelistv5
Published
2024-04-28 12:59
Modified
2026-08-05 08:51
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxt_tx_int() hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run before the rest of our code and free the skb, leading to a use-after-free. Since dev_kfree_skb_any() accepts NULL make the loss of ownership more obvious and set skb to NULL.
References
Impacted products
Vendor Product Version
Linux Linux Version: 83bb623c968e7351aee5111547693f95f330dc5a
Version: 83bb623c968e7351aee5111547693f95f330dc5a
Version: 83bb623c968e7351aee5111547693f95f330dc5a
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