Linux Kernel up to 7.0.9 ice ice_set_ringparam null pointer dereference

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 7.0.9. Affected by this issue is the function ice_set_ringparam of the component ice. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2026-53007. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.0.9. It has been classified as critical. This affects the function ice_set_ringparam of the component ice. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ice: fix potential NULL pointer deref in error path of ice_set_ringparam() ice_set_ringparam nullifies tstamp_ring of temporary tx_rings, without clearing ICE_TX_RING_FLAGS_TXTIME bit. When ICE_TX_RING_FLAGS_TXTIME is set and the subsequent ice_setup_tx_ring() call fails, a NULL pointer dereference could happen in the unwinding sequence: ice_clean_tx_ring() -> ice_is_txtime_cfg() == true (ICE_TX_RING_FLAGS_TXTIME is set) -> ice_free_tx_tstamp_ring() -> ice_free_tstamp_ring() -> tstamp_ring->desc (NULL deref) Clear ICE_TX_RING_FLAGS_TXTIME bit to avoid the potential issue. Note that this potential issue is found by manual code review. Compile test only since unfortunately I don't have E830 devices.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-53007 since 06/09/2026. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 7.0.10 eliminates this vulnerability. Applying the patch c54e3c270384829336b2526033d44ce1aa6dc67c/fa28351f970fa5138c7c5dedfe5dea480a0ee065 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.0.8
• 7.0.9

License

• open-source

Website

• Vendor: https://www.kernel.org/

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