7.8

CVE-2025-22062: linux NULL Pointer Dereference

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2025-22062DEBIAN-CVE-2025-22062
Published 16-04-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2025-22062 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.7% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 40 · Related 38
DLA-4271-1DSA-5925-1SUSE-SU-2025:01614-1SUSE-SU-2025:01707-1SUSE-SU-2025:01919-1SUSE-SU-2025:01951-1

Timeline

  1. 16-04-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: sctp: add mutual exclusion in proc_sctp_do_udp_port() We must serialize calls to sctp_udp_sock_stop() and sctp_udp_sock_start() or risk a crash as syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc000000000d: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000068-0x000000000000006f] CPU: 1 UID: 0 PID: 6551 Comm: syz.1.44 Not tainted 6.14.0-syzkaller-g7f2ff7b62617 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:kernel_sock_shutdown+0x47/0x70 net/socket.c:3653 Call Trace: <TASK> udp_tunnel_sock_release+0x68/0x80 net/ipv4/udp_tunnel_core.c:181 sctp_udp_sock_stop+0x71/0x160 net/sctp/protocol.c:930 proc_sctp_do_udp_port+0x264/0x450 net/sctp/sysctl.c:553 proc_sys_call_handler+0x3d0/0x5b0 fs/proc/proc_sysctl.c:601 iter_file_splice_write+0x91c/0x1150 fs/splice.c:738 do_splice_from fs/splice.c:935 [inline] direct_splice_actor+0x18f/0x6c0 fs/splice.c:1158 splice_direct_to_actor+0x342/0xa30 fs/splice.c:1102 do_splice_direct_actor fs/splice.c:1201 [inline] do_splice_direct+0x174/0x240 fs/splice.c:1227 do_sendfile+0xafd/0xe50 fs/read_write.c:1368 __do_sys_sendfile64 fs/read_write.c:1429 [inline] __se_sys_sendfile64 fs/read_write.c:1415 [inline] __x64_sys_sendfile64+0x1d8/0x220 fs/read_write.c:1415 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

+0.02 pp

From 0.28% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.29%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu125 products
  • linux< 5.15.0-144.157 | < 6.8.0-86.87
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1088.95 | < 6.8.0-1041.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 046c052b475e7119b6a30e3483e2888fc606a2f8, < 65ccb2793da7401772a3ffe85355c831b313c59f | ≥ 046c052b475e7119b6a30e3483e2888fc606a2f8, < 386507cb6fb7cdef598ddcb3f0fa37e6ca9e789d | ≥ 046c052b475e7119b6a30e3483e2888fc606a2f8, < b3598f53211ba1025485306de2733bdd241311a3 | ≥ 046c052b475e7119b6a30e3483e2888fc606a2f8, < e5178bfc55b3a78000f0f8298e7ade88783ce581 | ≥ 046c052b475e7119b6a30e3483e2888fc606a2f8, < efb8cb487be8f4ba6aaef616011d702d6a083ed1 | ≥ 046c052b475e7119b6a30e3483e2888fc606a2f8, < d3d7675d77622f6ca1aae14c51f80027b36283f8 | ≥ 046c052b475e7119b6a30e3483e2888fc606a2f8, < 10206302af856791fbcc27a33ed3c3eb09b2793d | 5.11
  • linux_kernel≥ 5.11, < 6.12.23 | ≥ 6.13, < 6.13.11 | ≥ 6.14, < 6.14.2
Debian1 product
  • linux< 6.1.140-1 | < 6.12.25-1

3 vendors · 128 products

References

40 links
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