🛡️ AZL-64628 — kernel

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2025-38127 affecting package kernel for versions less than 6.6.96.1-1

In the Linux kernel, the following vulnerability has been resolved:

ice: fix Tx scheduler error handling in XDP callback

When the XDP program is loaded, the XDP callback adds new Tx queues.

This means that the callback must update the Tx scheduler with the new

queue number. In the event of a Tx scheduler failure, the XDP callback

should also fail and roll back any changes previously made for XDP

preparation.

The previous implementation had a bug that not all changes made by the

XDP callback were rolled back. This caused the crash with the following

call trace:

[ +9.549584] ice 0000:ca:00.0: Failed VSI LAN queue config for XDP, error: -5

[ +0.382335] Oops: general protection fault, probably for non-canonical address 0x50a2250a90495525: 0000 [#1] SMP NOPTI

[ +0.010710] CPU: 103 UID: 0 PID: 0 Comm: swapper/103 Not tainted 6.14.0-net-next-mar-31+ #14 PREEMPT(voluntary)

[ +0.010175] Hardware name: Intel Corporation M50CYP2SBSTD/M50CYP2SBSTD, BIOS SE5C620.86B.01.01.0005.2202160810 02/16/2022

[ +0.010946] RIP: 0010:__ice_update_sample+0x39/0xe0 [ice]

[...]

[ +0.002715] Call Trace:

[ +0.002452] <IRQ>

[ +0.002021] ? __die_body.cold+0x19/0x29

[ +0.003922] ? die_addr+0x3c/0x60

[ +0.003319] ? exc_general_protection+0x17c/0x400

[ +0.004707] ? asm_exc_general_protection+0x26/0x30

[ +0.004879] ? __ice_update_sample+0x39/0xe0 [ice]

[ +0.004835] ice_napi_poll+0x665/0x680 [ice]

[ +0.004320] __napi_poll+0x28/0x190

[ +0.003500] net_rx_action+0x198/0x360

[ +0.003752] ? update_rq_clock+0x39/0x220

[ +0.004013] handle_softirqs+0xf1/0x340

[ +0.003840] ? sched_clock_cpu+0xf/0x1f0

[ +0.003925] __irq_exit_rcu+0xc2/0xe0

[ +0.003665] common_interrupt+0x85/0xa0

[ +0.003839] </IRQ>

[ +0.002098] <TASK>

[ +0.002106] asm_common_interrupt+0x26/0x40

[ +0.004184] RIP: 0010:cpuidle_enter_state+0xd3/0x690

Fix this by performing the missing unmapping of XDP queues from

q_vectors and setting the XDP rings pointer back to NULL after all those

queues are released.

Also, add an immediate exit from the XDP callback in case of ring

preparation failure.

Affected software

AZL-64628 is recorded against 1 package.

  • kernel (fixed in 6.6.96.1-1)

Timeline and source

Published on 3 July 2025 and last revised on 21 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-07-03
Updated 2026-08-12
Modified 2026-04-21
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel — 6.6.96.1-1

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