CVE-2025-22002 (GCVE-0-2025-22002)
Vulnerability from cvelistv5
Published
2025-04-03 07:19
Modified
2025-10-01 17:10
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0e0f2dfe880fb19e4b15a7ca468623eb0b4ba586
Version: 0e0f2dfe880fb19e4b15a7ca468623eb0b4ba586
Version: 0e0f2dfe880fb19e4b15a7ca468623eb0b4ba586
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On those filesystems, if writing to the\\ncache (`NETFS_WRITE_TO_CACHE`) fails for some reason, the kernel\\ncrashes like this:\\n\\n BUG: kernel NULL pointer dereference, address: 0000000000000000\\n #PF: supervisor instruction fetch in kernel mode\\n #PF: error_code(0x0010) - not-present page\\n PGD 0 P4D 0\\n Oops: Oops: 0010 [#1] SMP PTI\\n CPU: 9 UID: 0 PID: 3380 Comm: kworker/u193:11 Not tainted 6.13.3-cm4all1-hp #437\\n Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 10/17/2018\\n Workqueue: events_unbound netfs_write_collection_worker\\n RIP: 0010:0x0\\n Code: Unable to access opcode bytes at 0xffffffffffffffd6.\\n RSP: 0018:ffff9b86e2ca7dc0 EFLAGS: 00010202\\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: 7fffffffffffffff\\n RDX: 0000000000000001 RSI: ffff89259d576a18 RDI: ffff89259d576900\\n RBP: ffff89259d5769b0 R08: ffff9b86e2ca7d28 R09: 0000000000000002\\n R10: ffff89258ceaca80 R11: 0000000000000001 R12: 0000000000000020\\n R13: ffff893d158b9338 R14: ffff89259d576900 R15: ffff89259d5769b0\\n FS:  0000000000000000(0000) GS:ffff893c9fa40000(0000) knlGS:0000000000000000\\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: ffffffffffffffd6 CR3: 000000054442e003 CR4: 00000000001706f0\\n Call Trace:\\n  \u003cTASK\u003e\\n  ? __die+0x1f/0x60\\n  ? page_fault_oops+0x15c/0x460\\n  ? try_to_wake_up+0x2d2/0x530\\n  ? exc_page_fault+0x5e/0x100\\n  ? asm_exc_page_fault+0x22/0x30\\n  netfs_write_collection_worker+0xe9f/0x12b0\\n  ? xs_poll_check_readable+0x3f/0x80\\n  ? xs_stream_data_receive_workfn+0x8d/0x110\\n  process_one_work+0x134/0x2d0\\n  worker_thread+0x299/0x3a0\\n  ? __pfx_worker_thread+0x10/0x10\\n  kthread+0xba/0xe0\\n  ? __pfx_kthread+0x10/0x10\\n  ret_from_fork+0x30/0x50\\n  ? __pfx_kthread+0x10/0x10\\n  ret_from_fork_asm+0x1a/0x30\\n  \u003c/TASK\u003e\\n Modules linked in:\\n CR2: 0000000000000000\\n\\nThis patch adds the missing `NULL` check.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.21\", \"versionStartIncluding\": \"6.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.9\", \"versionStartIncluding\": \"6.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14\", \"versionStartIncluding\": \"6.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:27:12.991Z\"}}}",
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