CVE-2025-38569: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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: <TASK> __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.

Affected products

• Debian Debian Linux: version 11.0 only
• Linux Linux Kernel: from 5.4.291, before 5.4.297 (fixed in 5.4.297); from 5.10.235, before 5.10.241 (fixed in 5.10.241); from 5.15.179, before 5.15.190 (fixed in 5.15.190); from 6.1.131, before 6.1.148 (fixed in 6.1.148); from 6.6.83, before 6.6.102 (fixed in 6.6.102); from 6.12.19, before 6.12.42 (fixed in 6.12.42); …

Published 2025-08-19. Last modified 2026-06-17.