{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-57994",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-57994"
  ],
  "published": "2025-02-27T02:06:37Z",
  "summary": "ptr_ring: do not block hard interrupts in ptr_ring_resize_multiple()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nptr_ring: do not block hard interrupts in ptr_ring_resize_multiple()\n\nJakub added a lockdep_assert_no_hardirq() check in __page_pool_put_page()\nto increase test coverage.\n\nsyzbot found a splat caused by hard irq blocking in\nptr_ring_resize_multiple() [1]\n\nAs current users of ptr_ring_resize_multiple() do not require\nhard irqs being masked, replace it to only block BH.\n\nRename helpers to better reflect they are safe against BH only.\n\n- ptr_ring_resize_multiple() to ptr_ring_resize_multiple_bh()\n- skb_array_resize_multiple() to skb_array_resize_multiple_bh()\n\n[1]\n\nWARNING: CPU: 1 PID: 9150 at net/core/page_pool.c:709 __page_pool_put_page net/core/page_pool.c:709 [inline]\nWARNING: CPU: 1 PID: 9150 at net/core/page_pool.c:709 page_pool_put_unrefed_netmem+0x157/0xa40 net/core/page_pool.c:780\nModules linked in:\nCPU: 1 UID: 0 PID: 9150 Comm: syz.1.1052 Not tainted 6.11.0-rc3-syzkaller-00202-gf8669d7b5f5d #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nRIP: 0010:__page_pool_put_page net/core/page_pool.c:709 [inline]\nRIP: 0010:page_pool_put_unrefed_netmem+0x157/0xa40 net/core/page_pool.c:780\nCode: 74 0e e8 7c aa fb f7 eb 43 e8 75 aa fb f7 eb 3c 65 8b 1d 38 a8 6a 76 31 ff 89 de e8 a3 ae fb f7 85 db 74 0b e8 5a aa fb f7 90 <0f> 0b 90 eb 1d 65 8b 1d 15 a8 6a 76 31 ff 89 de e8 84 ae fb f7 85\nRSP: 0018:ffffc9000bda6b58 EFLAGS: 00010083\nRAX: ffffffff8997e523 RBX: 0000000000000000 RCX: 0000000000040000\nRDX: ffffc9000fbd0000 RSI: 0000000000001842 RDI: 0000000000001843\nRBP: 0000000000000000 R08: ffffffff8997df2c R09: 1ffffd40003a000d\nR10: dffffc0000000000 R11: fffff940003a000e R12: ffffea0001d00040\nR13: ffff88802e8a4000 R14: dffffc0000000000 R15: 00000000ffffffff\nFS:  00007fb7aaf716c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fa15a0d4b72 CR3: 00000000561b0000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n <TASK>\n tun_ptr_free drivers/net/tun.c:617 [inline]\n __ptr_ring_swap_queue include/linux/ptr_ring.h:571 [inline]\n ptr_ring_resize_multiple_noprof include/linux/ptr_ring.h:643 [inline]\n tun_queue_resize drivers/net/tun.c:3694 [inline]\n tun_device_event+0xaaf/0x1080 drivers/net/tun.c:3714\n notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93\n call_netdevice_notifiers_extack net/core/dev.c:2032 [inline]\n call_netdevice_notifiers net/core/dev.c:2046 [inline]\n dev_change_tx_queue_len+0x158/0x2a0 net/core/dev.c:9024\n do_setlink+0xff6/0x41f0 net/core/rtnetlink.c:2923\n rtnl_setlink+0x40d/0x5a0 net/core/rtnetlink.c:3201\n rtnetlink_rcv_msg+0x73f/0xcf0 net/core/rtnetlink.c:6647\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550",
  "affected": [
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      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
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        "1:6.6.31-1+rpt1",
        "1:6.6.47-1+rpt1",
        "1:6.6.51-1+rpt1",
        "1:6.6.51-1+rpt2",
        "1:6.6.51-1+rpt3",
        "1:6.6.62-1+rpt1",
        "1:6.6.74-1+rpt1"
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-57994"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/572777a258c048e0d0fb3a0c47430eadcefe80c0"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3257dac521d0ac6653108c755141dce634bb8ff2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e74801b7628dc52b17471aec729bc675479ddc73"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a126061c80d5efb4baef4bcf346094139cd81df6"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}