CVE-2026-53007

MediumCVSS 5.5/10Last modified Nov 6, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= ccde82e909467abdf098a8ee6f63e1ecf9a47ce5, < c789649d4334a3767210071311d58bc8e74bdec1; >= ccde82e909467abdf098a8ee6f63e1ecf9a47ce5, < c54e3c270384829336b2526033d44ce1aa6dc67c; >= ccde82e909467abdf098a8ee6f63e1ecf9a47ce5, < fa28351f970fa5138c7c5dedfe5dea480a0ee065
LinuxLinux6.18

References

Timeline

Published
Jun 24, 2026
Last modified
Nov 6, 2026
NVD status
Modified

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CVE-2026-53007: Medium severity, CVSS 5.5 | Vulnix