benet: fix BUG when creating VFs (CVE-2025-38569)

Summary

benet: fix BUG when creating VFs

Original description

The description as published by the source.

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

benet: fix BUG when creating VFs

benet crashes as soon as SRIOV VFs are created:

kernel BUG at mm/vmalloc.c:3457!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 4 UID: 0 PID: 7408 Comm: test.sh Kdump: loaded Not tainted 6.16.0+ #1 PREEMPT(voluntary)
[...]
RIP: 0010:vunmap+0x5f/0x70
[...]
Call Trace:

__iommu_dma_free+0xe8/0x1c0
be_cmd_set_mac_list+0x3fe/0x640 [be2net]
be_cmd_set_mac+0xaf/0x110 [be2net]
be_vf_eth_addr_config+0x19f/0x330 [be2net]
be_vf_setup+0x4f7/0x990 [be2net]
be_pci_sriov_configure+0x3a1/0x470 [be2net]
sriov_numvfs_store+0x20b/0x380
kernfs_fop_write_iter+0x354/0x530
vfs_write+0x9b9/0xf60
ksys_write+0xf3/0x1d0
do_syscall_64+0x8c/0x3d0

be_cmd_set_mac_list() calls dma_free_coherent() under a spin_lock_bh.
Fix it by freeing only after the lock has been released.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Affected packages

Linux Kernel

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.297"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.241"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.190"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.148"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.102"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.42"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.15.10"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.14.0"},{"fixed":"6.16.1"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

BellSoft Alpaquita BELL-CVE-2025-38569 linux-lts Fixed in: 6.1.151-r0
Debian DEBIAN-CVE-2025-38569 linux Fixed in: 5.10.244-1
Ubuntu UBUNTU-CVE-2025-38569 linux-hwe-edge

Summary

Original description

Affected packages

Fix status by distribution

References