CVE-2025-21981

In the Linux kernel, the following vulnerability has been resolved: ice: fix memory leak in aRFS after reset Fix aRFS (accelerated Receive Flow Steering) structures memory leak by adding a checker to verify if aRFS memory is already allocated while configuring VSI. aRFS objects are allocated in two cases: - as part of VSI initialization (at probe), and - as part of reset handling However, VSI reconfiguration executed during reset involves memory allocation one more time, without prior releasing already allocated resources. This led to the memory leak with the following signature: [root@os-delivery ~]# cat /sys/kernel/debug/kmemleak unreferenced object 0xff3c1ca7252e6000 (size 8192): comm "kworker/0:0", pid 8, jiffies 4296833052 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): [<ffffffff991ec485>] __kmalloc_cache_noprof+0x275/0x340 [<ffffffffc0a6e06a>] ice_init_arfs+0x3a/0xe0 [ice] [<ffffffffc09f1027>] ice_vsi_cfg_def+0x607/0x850 [ice] [<ffffffffc09f244b>] ice_vsi_setup+0x5b/0x130 [ice] [<ffffffffc09c2131>] ice_init+0x1c1/0x460 [ice] [<ffffffffc09c64af>] ice_probe+0x2af/0x520 [ice] [<ffffffff994fbcd3>] local_pci_probe+0x43/0xa0 [<ffffffff98f07103>] work_for_cpu_fn+0x13/0x20 [<ffffffff98f0b6d9>] process_one_work+0x179/0x390 [<ffffffff98f0c1e9>] worker_thread+0x239/0x340 [<ffffffff98f14abc>] kthread+0xcc/0x100 [<ffffffff98e45a6d>] ret_from_fork+0x2d/0x50 [<ffffffff98e083ba>] ret_from_fork_asm+0x1a/0x30 ...

• CWE-401
• CWE-401

• https://git.kernel.org/stable/c/23d97f18901ef5e4e264e3b1777fe65c760186b5Patch
• https://git.kernel.org/stable/c/3b27e6e10a32589fcd293b8933ab6de9387a460ePatch
• https://git.kernel.org/stable/c/5d30d256661fc11b6e73fac6c3783a702e1006a3Patch
• https://git.kernel.org/stable/c/78f3d64b30210c0e521c59357431aca14024cb79Patch
• https://git.kernel.org/stable/c/e6902101f34f098af59b0d1d8cf90c4124c02c6aPatch
• https://git.kernel.org/stable/c/ef2bc94059836a115430a6ad9d2838b0b34dc8f5Patch
• https://git.kernel.org/stable/c/fcbacc47d16306c87ad1b820b7a575f6e9eae58bPatch
• https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
• https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Published

Apr 1, 2025

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2025-21976In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-21977In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-21978In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-21979In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-2198Rejected reason: This CVE ID has been rejected or withdrawn …
• CVE-2025-21980In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-21982In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-21983In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2025-21984In the Linux kernel, the following vulnerability has been re…4.7
• CVE-2025-21985In the Linux kernel, the following vulnerability has been re…7.1
• CVE-2025-21986In the Linux kernel, the following vulnerability has been re…5.5
• CVE-2025-21987In the Linux kernel, the following vulnerability has been re…5.5