{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-37876",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-37876"
  ],
  "published": "2025-05-09T06:46:36Z",
  "summary": "netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Only create /proc/fs/netfs with CONFIG_PROC_FS\n\nWhen testing a special config:\n\nCONFIG_NETFS_SUPPORTS=y\nCONFIG_PROC_FS=n\n\nThe system crashes with something like:\n\n[    3.766197] ------------[ cut here ]------------\n[    3.766484] kernel BUG at mm/mempool.c:560!\n[    3.766789] Oops: invalid opcode: 0000 [#1] SMP NOPTI\n[    3.767123] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G        W\n[    3.767777] Tainted: [W]=WARN\n[    3.767968] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),\n[    3.768523] RIP: 0010:mempool_alloc_slab.cold+0x17/0x19\n[    3.768847] Code: 50 fe ff 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 93 95 13 00\n[    3.769977] RSP: 0018:ffffc90000013998 EFLAGS: 00010286\n[    3.770315] RAX: 000000000000002f RBX: ffff888100ba8640 RCX: 0000000000000000\n[    3.770749] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 00000000ffffffff\n[    3.771217] RBP: 0000000000092880 R08: 0000000000000000 R09: ffffc90000013828\n[    3.771664] R10: 0000000000000001 R11: 00000000ffffffea R12: 0000000000092cc0\n[    3.772117] R13: 0000000000000400 R14: ffff8881004b1620 R15: ffffea0004ef7e40\n[    3.772554] FS:  0000000000000000(0000) GS:ffff8881b5f3c000(0000) knlGS:0000000000000000\n[    3.773061] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[    3.773443] CR2: ffffffff830901b4 CR3: 0000000004296001 CR4: 0000000000770ef0\n[    3.773884] PKRU: 55555554\n[    3.774058] Call Trace:\n[    3.774232]  <TASK>\n[    3.774371]  mempool_alloc_noprof+0x6a/0x190\n[    3.774649]  ? _printk+0x57/0x80\n[    3.774862]  netfs_alloc_request+0x85/0x2ce\n[    3.775147]  netfs_readahead+0x28/0x170\n[    3.775395]  read_pages+0x6c/0x350\n[    3.775623]  ? srso_alias_return_thunk+0x5/0xfbef5\n[    3.775928]  page_cache_ra_unbounded+0x1bd/0x2a0\n[    3.776247]  filemap_get_pages+0x139/0x970\n[    3.776510]  ? srso_alias_return_thunk+0x5/0xfbef5\n[    3.776820]  filemap_read+0xf9/0x580\n[    3.777054]  ? srso_alias_return_thunk+0x5/0xfbef5\n[    3.777368]  ? srso_alias_return_thunk+0x5/0xfbef5\n[    3.777674]  ? find_held_lock+0x32/0x90\n[    3.777929]  ? netfs_start_io_read+0x19/0x70\n[    3.778221]  ? netfs_start_io_read+0x19/0x70\n[    3.778489]  ? srso_alias_return_thunk+0x5/0xfbef5\n[    3.778800]  ? lock_acquired+0x1e6/0x450\n[    3.779054]  ? srso_alias_return_thunk+0x5/0xfbef5\n[    3.779379]  netfs_buffered_read_iter+0x57/0x80\n[    3.779670]  __kernel_read+0x158/0x2c0\n[    3.779927]  bprm_execve+0x300/0x7a0\n[    3.780185]  kernel_execve+0x10c/0x140\n[    3.780423]  ? __pfx_kernel_init+0x10/0x10\n[    3.780690]  kernel_init+0xd5/0x150\n[    3.780910]  ret_from_fork+0x2d/0x50\n[    3.781156]  ? __pfx_kernel_init+0x10/0x10\n[    3.781414]  ret_from_fork_asm+0x1a/0x30\n[    3.781677]  </TASK>\n[    3.781823] Modules linked in:\n[    3.782065] ---[ end trace 0000000000000000 ]---\n\nThis is caused by the following error path in netfs_init():\n\n        if (!proc_mkdir(\"fs/netfs\", NULL))\n                goto error_proc;\n\nFix this by adding ifdef in netfs_main(), so that /proc/fs/netfs is only\ncreated with CONFIG_PROC_FS.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.12.20-1+rpt1~bpo12+1",
        "1:6.12.25-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-2712",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v6",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v7",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v7l",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v8",
            "binary_version": "1:6.12.20-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-2712",
            "binary_version": "1:6.12.25-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v6",
            "binary_version": "1:6.12.25-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v7",
            "binary_version": "1:6.12.25-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v7l",
            "binary_version": "1:6.12.25-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v8",
            "binary_version": "1:6.12.25-1+rpt1"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.12.20-1+rpt1~bpo12+1": {
            "linux_commit": "cd231d4775b14f228606c09f219b48308f6ab3aa",
            "upstream_version": "6.12.20",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.26"
          },
          "1:6.12.25-1+rpt1": {
            "linux_commit": "3dd2c2c507c271d411fab2e82a2b3b7e0b6d3f16",
            "upstream_version": "6.12.25",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.26"
          }
        }
      }
    },
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:13",
        "name": "linux"
      },
      "versions": [
        "1:6.12.19-1+rpt1~bpo12+1",
        "1:6.12.19-1+rpt1",
        "1:6.12.20-1+rpt1",
        "1:6.12.25-1+rpt1+trixie"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-2712",
            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v6",
            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v7",
            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v7l",
            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v8",
            "binary_version": "1:6.12.19-1+rpt1~bpo12+1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-2712",
            "binary_version": "1:6.12.19-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v6",
            "binary_version": "1:6.12.19-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v7",
            "binary_version": "1:6.12.19-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v7l",
            "binary_version": "1:6.12.19-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.19+rpt-rpi-v8",
            "binary_version": "1:6.12.19-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-2712",
            "binary_version": "1:6.12.20-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v6",
            "binary_version": "1:6.12.20-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v7",
            "binary_version": "1:6.12.20-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v7l",
            "binary_version": "1:6.12.20-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.20+rpt-rpi-v8",
            "binary_version": "1:6.12.20-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-2712",
            "binary_version": "1:6.12.25-1+rpt1+trixie"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v6",
            "binary_version": "1:6.12.25-1+rpt1+trixie"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v7",
            "binary_version": "1:6.12.25-1+rpt1+trixie"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v8",
            "binary_version": "1:6.12.25-1+rpt1+trixie"
          },
          {
            "binary_name": "linux-image-6.12.25+rpt-rpi-v8-rt",
            "binary_version": "1:6.12.25-1+rpt1+trixie"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.12.19-1+rpt1~bpo12+1": {
            "linux_commit": "121c2c384b9c2f4790ffb31b2cd25c7d75c8fda0",
            "upstream_version": "6.12.19",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.26"
          },
          "1:6.12.19-1+rpt1": {
            "linux_commit": "121c2c384b9c2f4790ffb31b2cd25c7d75c8fda0",
            "upstream_version": "6.12.19",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.26"
          },
          "1:6.12.20-1+rpt1": {
            "linux_commit": "cd231d4775b14f228606c09f219b48308f6ab3aa",
            "upstream_version": "6.12.20",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.26"
          },
          "1:6.12.25-1+rpt1+trixie": {
            "linux_commit": "3dd2c2c507c271d411fab2e82a2b3b7e0b6d3f16",
            "upstream_version": "6.12.25",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.26"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-37876"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2ef6eea2efce01d1956ace483216f6b6e26330c9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6c4c5e0b96a90f2a11c378e66edc1f25165e10b6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/40cb48eba3b4b79e110c1a35d33a48cac54507a2"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T12:19:11Z"
  }
}