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Vulnerability Change Records for CVE-2025-21981

Change History

New CVE Received from kernel.org 4/01/2025 12:15:29 PM

Action Type Old Value New Value
Added Description

								
							
							
						
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
    ...
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/23d97f18901ef5e4e264e3b1777fe65c760186b5
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/3b27e6e10a32589fcd293b8933ab6de9387a460e
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/5d30d256661fc11b6e73fac6c3783a702e1006a3
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/78f3d64b30210c0e521c59357431aca14024cb79
Added Reference

								
							
							
						
https://git.kernel.org/stable/c/fcbacc47d16306c87ad1b820b7a575f6e9eae58b