CVE-2025-38569: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2025-38569 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 44 · Related 40Timeline
- 19-08-2025PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
+0.01 pp
From 0.17% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu143 products
- linuxAll versions (No fix recorded) | < 5.15.0-163.173 | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1097.104 | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.148-1 | < 6.12.43-1 | < 6.16.3-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ 797bb9439c0489bbea4b8808297ec7a569098667, < 3697e37e012bbd2bb5a5b467689811ba097b2eff | ≥ 7cfae8627511361f90a1a22dfae556c3fbc5bd8d, < 975e73b9102d844a3dc3f091ad631c56145c8b4c | ≥ 671aaa17bd3153e25526934f92307169ce927b5e, < f80b34ebc579216407b128e9d155bfcae875c30f | ≥ 4393452e6c0c027971ec9bcc9557f52e63db3f0a, < 46d44a23a3723a89deeb65b13cddb17f8d9f2700 | ≥ 41d731e7920387ea13e2fb440a1e235686faeeb9, < c377ba2be9430d165a98e4b782902ed630bc7546 | ≥ fd1ef3b1bdd3fec683ebd19eb3acc6a2cb60b5c6, < 0ddfe8b127ef1149fddccb79db6e6eaba7738e7d | ≥ 1a82d19ca2d6835904ee71e2d40fd331098f94a0, < d5dc09ee5d74277bc47193fe28ce8703e229331b | ≥ 1a82d19ca2d6835904ee71e2d40fd331098f94a0, < f4e4e0c4bc4d799d6fa39055acdbc3af066cd13e | ≥ 1a82d19ca2d6835904ee71e2d40fd331098f94a0, < 5a40f8af2ba1b9bdf46e2db10e8c9710538fbc63 | 227a829c9067bf03b1967e7e0b1a6777fd57edef | ≥ 5.4.291, < 5.4.297 | ≥ 5.10.235, < 5.10.241 | ≥ 5.15.179, < 5.15.190 | ≥ 6.1.131, < 6.1.148 | ≥ 6.6.83, < 6.6.102 | ≥ 6.12.19, < 6.12.42 | ≥ 6.13.7, < 6.14 | 6.14
- linux_kernelEOL≥ 5.4.291, < 5.4.297 | ≥ 5.10.235, < 5.10.241 | ≥ 5.15.179, < 5.15.190 | ≥ 6.1.131, < 6.1.148 | ≥ 6.6.83, < 6.6.102 | ≥ 6.12.19, < 6.12.42 | ≥ 6.13.7, < 6.14 | ≥ 6.14.1, < 6.15.10 | ≥ 6.16, < 6.16.1 | 6.14 | 6.14:rc6 | 6.14:rc7
3 vendors · 147 products
