CVE-2025-38490 (GCVE-0-2025-38490)
Vulnerability from cvelistv5
Published
2025-07-28 11:21
Modified
2026-08-05 12:02
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: libwx: remove duplicate page_pool_put_full_page() page_pool_put_full_page() should only be invoked when freeing Rx buffers or building a skb if the size is too short. At other times, the pages need to be reused. So remove the redundant page put. In the original code, double free pages cause kernel panic: [ 876.949834] __irq_exit_rcu+0xc7/0x130 [ 876.949836] common_interrupt+0xb8/0xd0 [ 876.949838] </IRQ> [ 876.949838] <TASK> [ 876.949840] asm_common_interrupt+0x22/0x40 [ 876.949841] RIP: 0010:cpuidle_enter_state+0xc2/0x420 [ 876.949843] Code: 00 00 e8 d1 1d 5e ff e8 ac f0 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 cd fc 5c ff 45 84 ff 0f 85 40 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 84 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d [ 876.949844] RSP: 0018:ffffaa7340267e78 EFLAGS: 00000246 [ 876.949845] RAX: ffff9e3f135be000 RBX: 0000000000000002 RCX: 0000000000000000 [ 876.949846] RDX: 000000cc2dc4cb7c RSI: ffffffff89ee49ae RDI: ffffffff89ef9f9e [ 876.949847] RBP: ffff9e378f940800 R08: 0000000000000002 R09: 00000000000000ed [ 876.949848] R10: 000000000000afc8 R11: ffff9e3e9e5a9b6c R12: ffffffff8a6d8580 [ 876.949849] R13: 000000cc2dc4cb7c R14: 0000000000000002 R15: 0000000000000000 [ 876.949852] ? cpuidle_enter_state+0xb3/0x420 [ 876.949855] cpuidle_enter+0x29/0x40 [ 876.949857] cpuidle_idle_call+0xfd/0x170 [ 876.949859] do_idle+0x7a/0xc0 [ 876.949861] cpu_startup_entry+0x25/0x30 [ 876.949862] start_secondary+0x117/0x140 [ 876.949864] common_startup_64+0x13e/0x148 [ 876.949867] </TASK> [ 876.949868] ---[ end trace 0000000000000000 ]--- [ 876.949869] ------------[ cut here ]------------ [ 876.949870] list_del corruption, ffffead40445a348->next is NULL [ 876.949873] WARNING: CPU: 14 PID: 0 at lib/list_debug.c:52 __list_del_entry_valid_or_report+0x67/0x120 [ 876.949875] Modules linked in: snd_hrtimer(E) bnep(E) binfmt_misc(E) amdgpu(E) squashfs(E) vfat(E) loop(E) fat(E) amd_atl(E) snd_hda_codec_realtek(E) intel_rapl_msr(E) snd_hda_codec_generic(E) intel_rapl_common(E) snd_hda_scodec_component(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) edac_mce_amd(E) snd_intel_dspcfg(E) snd_hda_codec(E) snd_hda_core(E) amdxcp(E) kvm_amd(E) snd_hwdep(E) gpu_sched(E) drm_panel_backlight_quirks(E) cec(E) snd_pcm(E) drm_buddy(E) snd_seq_dummy(E) drm_ttm_helper(E) btusb(E) kvm(E) snd_seq_oss(E) btrtl(E) ttm(E) btintel(E) snd_seq_midi(E) btbcm(E) drm_exec(E) snd_seq_midi_event(E) i2c_algo_bit(E) snd_rawmidi(E) bluetooth(E) drm_suballoc_helper(E) irqbypass(E) snd_seq(E) ghash_clmulni_intel(E) sha512_ssse3(E) drm_display_helper(E) aesni_intel(E) snd_seq_device(E) rfkill(E) snd_timer(E) gf128mul(E) drm_client_lib(E) drm_kms_helper(E) snd(E) i2c_piix4(E) joydev(E) soundcore(E) wmi_bmof(E) ccp(E) k10temp(E) i2c_smbus(E) gpio_amdpt(E) i2c_designware_platform(E) gpio_generic(E) sg(E) [ 876.949914] i2c_designware_core(E) sch_fq_codel(E) parport_pc(E) drm(E) ppdev(E) lp(E) parport(E) fuse(E) nfnetlink(E) ip_tables(E) ext4 crc16 mbcache jbd2 sd_mod sfp mdio_i2c i2c_core txgbe ahci ngbe pcs_xpcs libahci libwx r8169 phylink libata realtek ptp pps_core video wmi [ 876.949933] CPU: 14 UID: 0 PID: 0 Comm: swapper/14 Kdump: loaded Tainted: G W E 6.16.0-rc2+ #20 PREEMPT(voluntary) [ 876.949935] Tainted: [W]=WARN, [E]=UNSIGNED_MODULE [ 876.949936] Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024 [ 876.949936] RIP: 0010:__list_del_entry_valid_or_report+0x67/0x120 [ 876.949938] Code: 00 00 00 48 39 7d 08 0f 85 a6 00 00 00 5b b8 01 00 00 00 5d 41 5c e9 73 0d 93 ff 48 89 fe 48 c7 c7 a0 31 e8 89 e8 59 7c b3 ff <0f> 0b 31 c0 5b 5d 41 5c e9 57 0d 93 ff 48 89 fe 48 c7 c7 c8 31 e8 [ 876.949940] RSP: 0018:ffffaa73405d0c60 EFLAGS: 00010282 [ 876.949941] RAX: 0000000000000000 RBX: ffffead40445a348 RCX: 0000000000000000 [ 876.949942] RDX: 0000000000000105 RSI: 00000 ---truncated---
References
Impacted products
Vendor Product Version
Linux Linux Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
Version: 3c47e8ae113a68da47987750d9896e325d0aeedd
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_lib.c",
            "drivers/net/ethernet/wangxun/libwx/wx_type.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3c91a56762b1f0d1e4af2d86c2cba83b61ed9eaa",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "08d18bda0d03f5ec376929a8c6c4495f9594593a",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "003e4765d8661be97e650a833868c53d35574130",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            },
            {
              "lessThan": "1b7e585c04cd5f0731dd25ffd396277e55fae0e6",
              "status": "affected",
              "version": "3c47e8ae113a68da47987750d9896e325d0aeedd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/wangxun/libwx/wx_lib.c",
            "drivers/net/ethernet/wangxun/libwx/wx_type.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.100",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.100",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.40",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.8",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: libwx: remove duplicate page_pool_put_full_page()\n\npage_pool_put_full_page() should only be invoked when freeing Rx buffers\nor building a skb if the size is too short. At other times, the pages\nneed to be reused. So remove the redundant page put. In the original\ncode, double free pages cause kernel panic:\n\n[  876.949834]  __irq_exit_rcu+0xc7/0x130\n[  876.949836]  common_interrupt+0xb8/0xd0\n[  876.949838]  \u003c/IRQ\u003e\n[  876.949838]  \u003cTASK\u003e\n[  876.949840]  asm_common_interrupt+0x22/0x40\n[  876.949841] RIP: 0010:cpuidle_enter_state+0xc2/0x420\n[  876.949843] Code: 00 00 e8 d1 1d 5e ff e8 ac f0 ff ff 49 89 c5 0f 1f 44 00 00 31 ff e8 cd fc 5c ff 45 84 ff 0f 85 40 02 00 00 fb 0f 1f 44 00 00 \u003c45\u003e 85 f6 0f 88 84 01 00 00 49 63 d6 48 8d 04 52 48 8d 04 82 49 8d\n[  876.949844] RSP: 0018:ffffaa7340267e78 EFLAGS: 00000246\n[  876.949845] RAX: ffff9e3f135be000 RBX: 0000000000000002 RCX: 0000000000000000\n[  876.949846] RDX: 000000cc2dc4cb7c RSI: ffffffff89ee49ae RDI: ffffffff89ef9f9e\n[  876.949847] RBP: ffff9e378f940800 R08: 0000000000000002 R09: 00000000000000ed\n[  876.949848] R10: 000000000000afc8 R11: ffff9e3e9e5a9b6c R12: ffffffff8a6d8580\n[  876.949849] R13: 000000cc2dc4cb7c R14: 0000000000000002 R15: 0000000000000000\n[  876.949852]  ? cpuidle_enter_state+0xb3/0x420\n[  876.949855]  cpuidle_enter+0x29/0x40\n[  876.949857]  cpuidle_idle_call+0xfd/0x170\n[  876.949859]  do_idle+0x7a/0xc0\n[  876.949861]  cpu_startup_entry+0x25/0x30\n[  876.949862]  start_secondary+0x117/0x140\n[  876.949864]  common_startup_64+0x13e/0x148\n[  876.949867]  \u003c/TASK\u003e\n[  876.949868] ---[ end trace 0000000000000000 ]---\n[  876.949869] ------------[ cut here ]------------\n[  876.949870] list_del corruption, ffffead40445a348-\u003enext is NULL\n[  876.949873] WARNING: CPU: 14 PID: 0 at lib/list_debug.c:52 __list_del_entry_valid_or_report+0x67/0x120\n[  876.949875] Modules linked in: snd_hrtimer(E) bnep(E) binfmt_misc(E) amdgpu(E) squashfs(E) vfat(E) loop(E) fat(E) amd_atl(E) snd_hda_codec_realtek(E) intel_rapl_msr(E) snd_hda_codec_generic(E) intel_rapl_common(E) snd_hda_scodec_component(E) snd_hda_codec_hdmi(E) snd_hda_intel(E) edac_mce_amd(E) snd_intel_dspcfg(E) snd_hda_codec(E) snd_hda_core(E) amdxcp(E) kvm_amd(E) snd_hwdep(E) gpu_sched(E) drm_panel_backlight_quirks(E) cec(E) snd_pcm(E) drm_buddy(E) snd_seq_dummy(E) drm_ttm_helper(E) btusb(E) kvm(E) snd_seq_oss(E) btrtl(E) ttm(E) btintel(E) snd_seq_midi(E) btbcm(E) drm_exec(E) snd_seq_midi_event(E) i2c_algo_bit(E) snd_rawmidi(E) bluetooth(E) drm_suballoc_helper(E) irqbypass(E) snd_seq(E) ghash_clmulni_intel(E) sha512_ssse3(E) drm_display_helper(E) aesni_intel(E) snd_seq_device(E) rfkill(E) snd_timer(E) gf128mul(E) drm_client_lib(E) drm_kms_helper(E) snd(E) i2c_piix4(E) joydev(E) soundcore(E) wmi_bmof(E) ccp(E) k10temp(E) i2c_smbus(E) gpio_amdpt(E) i2c_designware_platform(E) gpio_generic(E) sg(E)\n[  876.949914]  i2c_designware_core(E) sch_fq_codel(E) parport_pc(E) drm(E) ppdev(E) lp(E) parport(E) fuse(E) nfnetlink(E) ip_tables(E) ext4 crc16 mbcache jbd2 sd_mod sfp mdio_i2c i2c_core txgbe ahci ngbe pcs_xpcs libahci libwx r8169 phylink libata realtek ptp pps_core video wmi\n[  876.949933] CPU: 14 UID: 0 PID: 0 Comm: swapper/14 Kdump: loaded Tainted: G        W   E       6.16.0-rc2+ #20 PREEMPT(voluntary)\n[  876.949935] Tainted: [W]=WARN, [E]=UNSIGNED_MODULE\n[  876.949936] Hardware name: Micro-Star International Co., Ltd. MS-7E16/X670E GAMING PLUS WIFI (MS-7E16), BIOS 1.90 12/31/2024\n[  876.949936] RIP: 0010:__list_del_entry_valid_or_report+0x67/0x120\n[  876.949938] Code: 00 00 00 48 39 7d 08 0f 85 a6 00 00 00 5b b8 01 00 00 00 5d 41 5c e9 73 0d 93 ff 48 89 fe 48 c7 c7 a0 31 e8 89 e8 59 7c b3 ff \u003c0f\u003e 0b 31 c0 5b 5d 41 5c e9 57 0d 93 ff 48 89 fe 48 c7 c7 c8 31 e8\n[  876.949940] RSP: 0018:ffffaa73405d0c60 EFLAGS: 00010282\n[  876.949941] RAX: 0000000000000000 RBX: ffffead40445a348 RCX: 0000000000000000\n[  876.949942] RDX: 0000000000000105 RSI: 00000\n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code is the NIC receive path (`wx_clean_rx_irq`), driven entirely by frames arriving from the network with no local access required. Multi-descriptor frames occur on jumbo-MTU configurations, which in routed jumbo-enabled datacenter fabrics are reachable from non-adjacent remote hosts.\nAC:L - Once the interface uses an MTU above the 2 KB RX buffer size, every sufficiently large received frame deterministically takes the non-EOP path and triggers the duplicate `page_pool_put_full_page()` \u2014 there is no race and no memory-layout condition the attacker must win.\nPR:N - The attacker needs no account, credentials, or capabilities on the target; the bug fires in softirq context while processing unauthenticated inbound packets, before any protocol-level authentication.\nUI:N - Packet reception and NAPI polling happen automatically; no administrator or user action on the victim is needed once the interface is up.\nS:U - The double free corrupts kernel page-allocator and page-pool state within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The prematurely released page is reallocated from the page pool while still referenced by a live skb, so contents belonging to other packets or other kernel allocations are delivered up the network stack to userspace sockets, and the double free can be leveraged for broader kernel memory disclosure.\nI:H - The same page is owned by two consumers at once, so hardware DMA of attacker-supplied packet bytes writes into memory another subsystem holds, and the page-allocator freelist corruption yields a classic double-free write primitive exploitable for control-flow hijacking.\nA:H - The reported failure is a kernel panic with `list_del` corruption and a WARNING in `__list_del_entry_valid_or_report()` during `__rmqueue_pcplist`, and the corruption is repeatable with every large frame received."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:02:20.889Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3c91a56762b1f0d1e4af2d86c2cba83b61ed9eaa"
        },
        {
          "url": "https://git.kernel.org/stable/c/08d18bda0d03f5ec376929a8c6c4495f9594593a"
        },
        {
          "url": "https://git.kernel.org/stable/c/003e4765d8661be97e650a833868c53d35574130"
        },
        {
          "url": "https://git.kernel.org/stable/c/1b7e585c04cd5f0731dd25ffd396277e55fae0e6"
        }
      ],
      "title": "net: libwx: remove duplicate page_pool_put_full_page()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38490",
    "datePublished": "2025-07-28T11:21:54.009Z",
    "dateReserved": "2025-04-16T04:51:24.021Z",
    "dateUpdated": "2026-08-05T12:02:20.889Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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