CVE-2025-21981

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 ...

Reserved 2024-12-29 | Published 2025-04-01 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

28bf26724fdb0e02267d19e280d6717ee810a10d before ef2bc94059836a115430a6ad9d2838b0b34dc8f5
affected

28bf26724fdb0e02267d19e280d6717ee810a10d before e6902101f34f098af59b0d1d8cf90c4124c02c6a
affected

28bf26724fdb0e02267d19e280d6717ee810a10d before fcbacc47d16306c87ad1b820b7a575f6e9eae58b
affected

28bf26724fdb0e02267d19e280d6717ee810a10d before 5d30d256661fc11b6e73fac6c3783a702e1006a3
affected

28bf26724fdb0e02267d19e280d6717ee810a10d before 3b27e6e10a32589fcd293b8933ab6de9387a460e
affected

28bf26724fdb0e02267d19e280d6717ee810a10d before 78f3d64b30210c0e521c59357431aca14024cb79
affected

28bf26724fdb0e02267d19e280d6717ee810a10d before 23d97f18901ef5e4e264e3b1777fe65c760186b5
affected

Default status
affected

5.8
affected

Any version before 5.8
unaffected

5.10.236
unaffected

5.15.180
unaffected

6.1.132
unaffected

6.6.84
unaffected

6.12.20
unaffected

6.13.8
unaffected

6.14
unaffected

References

git.kernel.org/...c/ef2bc94059836a115430a6ad9d2838b0b34dc8f5

git.kernel.org/...c/e6902101f34f098af59b0d1d8cf90c4124c02c6a

git.kernel.org/...c/fcbacc47d16306c87ad1b820b7a575f6e9eae58b

git.kernel.org/...c/5d30d256661fc11b6e73fac6c3783a702e1006a3

git.kernel.org/...c/3b27e6e10a32589fcd293b8933ab6de9387a460e

git.kernel.org/...c/78f3d64b30210c0e521c59357431aca14024cb79

git.kernel.org/...c/23d97f18901ef5e4e264e3b1777fe65c760186b5

cve.org (CVE-2025-21981)

nvd.nist.gov (CVE-2025-21981)

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