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Vulnerability · Published Apr 3, 2025 · Assigned by Linux

CVE-2025-22002netfs: Call `invalidate_cache` only if implemented

Medium 5.5

In plain English

A medium-severity null pointer dereference in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 91.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: netfs: Call `invalidate_cache` only if implemented Many filesystems such as NFS and Ceph do not implement the `invalidate_cache` method. On those filesystems, if writing to the cache (`NETFS_WRITE_TO_CACHE`) fails for some reason, the kernel crashes like this: BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 0 P4D 0 Oops: Oops: 0010 [#1] SMP PTI CPU: 9 UID: 0 PID: 3380 Comm: kworker/u193:11 Not tainted 6.13.3-cm4all1-hp #437 Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 10/17/2018 Workqueue: events_unbound netfs_write_collection_worker RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffff9b86e2ca7dc0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 7fffffffffffffff RDX: 0000000000000001 RSI: ffff89259d576a18 RDI: ffff89259d576900 RBP: ffff89259d5769b0 R08: ffff9b86e2ca7d28 R09: 0000000000000002 R10: ffff89258ceaca80 R11: 0000000000000001 R12: 0000000000000020 R13: ffff893d158b9338 R14: ffff89259d576900 R15: ffff89259d5769b0 FS: 0000000000000000(0000) GS:ffff893c9fa40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000054442e003 CR4: 00000000001706f0 Call Trace: <TASK> ? __die+0x1f/0x60 ? page_fault_oops+0x15c/0x460 ? try_to_wake_up+0x2d2/0x530 ? exc_page_fault+0x5e/0x100 ? asm_exc_page_fault+0x22/0x30 netfs_write_collection_worker+0xe9f/0x12b0 ? xs_poll_check_readable+0x3f/0x80 ? xs_stream_data_receive_workfn+0x8d/0x110 process_one_work+0x134/0x2d0 worker_thread+0x299/0x3a0 ? __pfx_worker_thread+0x10/0x10 kthread+0xba/0xe0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x30/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK> Modules linked in: CR2: 0000000000000000 This patch adds the missing `NULL` check.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.21-1DEBIAN-CVE-2025-22002
Debian:14linux6.12.21-1DEBIAN-CVE-2025-22002
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1018.18~24.04.1UBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-gcp-6.116.11.0-1016.16~24.04.1UBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-hwe-6.116.11.0-28.28~24.04.1UBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1015.16~24.04.2UBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-nvidia-6.116.11.0-1012.12UBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-oem-6.116.11.0-1024.24UBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-22002
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2025-22002
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2025-22002

Affected products (as reported)

VendorProductVersions
Linux Linux 0e0f2dfe880fb19e4b15a7ca468623eb0b4ba586 – before 0def1a40c3e76a468f8f66aa572caed44ec372770e0f2dfe880fb19e4b15a7ca468623eb0b4ba586 – before c2d5d14a7bcbb045d0cd0095cefe95f2a4b911590e0f2dfe880fb19e4b15a7ca468623eb0b4ba586 – before 344b7ef248f420ed4ba3a3539cb0a0fc18df9a6c
Linux Linux 6.8

Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References