FKIE_CVE-2024-53174

Vulnerability from fkie_nvd - Published: 2024-12-27 14:15 - Updated: 2025-11-03 21:17
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: make sure cache entry active before cache_show The function `c_show` was called with protection from RCU. This only ensures that `cp` will not be freed. Therefore, the reference count for `cp` can drop to zero, which will trigger a refcount use-after-free warning when `cache_get` is called. To resolve this issue, use `cache_get_rcu` to ensure that `cp` remains active. ------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 7 PID: 822 at lib/refcount.c:25 refcount_warn_saturate+0xb1/0x120 CPU: 7 UID: 0 PID: 822 Comm: cat Not tainted 6.12.0-rc3+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 RIP: 0010:refcount_warn_saturate+0xb1/0x120 Call Trace: <TASK> c_show+0x2fc/0x380 [sunrpc] seq_read_iter+0x589/0x770 seq_read+0x1e5/0x270 proc_reg_read+0xe1/0x140 vfs_read+0x125/0x530 ksys_read+0xc1/0x160 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/02999e135b013d85c6df738746e8e24699befee4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/068c0b50f3f700b94f78850834cd91ae3b34c2c1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2862eee078a4d2d1f584e7f24fa50dddfa5f3471Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/acfaf37888e0f0732fb6a50ff093dce6d99994d0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c7dac3af57e38b2054f990e573256d90bf887958Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d882e2b7fad3f5e5fac66184a347f408813f654aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e9be26735d055c42543a4d047a769cc6d0fb1504Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec305f303bf070b4f6896b7a76009f702956d402Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: make sure cache entry active before cache_show\n\nThe function `c_show` was called with protection from RCU. This only\nensures that `cp` will not be freed. Therefore, the reference count for\n`cp` can drop to zero, which will trigger a refcount use-after-free\nwarning when `cache_get` is called. To resolve this issue, use\n`cache_get_rcu` to ensure that `cp` remains active.\n\n------------[ cut here ]------------\nrefcount_t: addition on 0; use-after-free.\nWARNING: CPU: 7 PID: 822 at lib/refcount.c:25\nrefcount_warn_saturate+0xb1/0x120\nCPU: 7 UID: 0 PID: 822 Comm: cat Not tainted 6.12.0-rc3+ #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.16.1-2.fc37 04/01/2014\nRIP: 0010:refcount_warn_saturate+0xb1/0x120\n\nCall Trace:\n \u003cTASK\u003e\n c_show+0x2fc/0x380 [sunrpc]\n seq_read_iter+0x589/0x770\n seq_read+0x1e5/0x270\n proc_reg_read+0xe1/0x140\n vfs_read+0x125/0x530\n ksys_read+0xc1/0x160\n do_syscall_64+0x5f/0x170\n entry_SYSCALL_64_after_hwframe+0x76/0x7e"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: SUNRPC: aseg\u00farese de que la entrada de cach\u00e9 est\u00e9 activa antes de cache_show La funci\u00f3n `c_show` se llam\u00f3 con protecci\u00f3n de RCU. Esto solo garantiza que `cp` no se liberar\u00e1. Por lo tanto, el recuento de referencia para `cp` puede caer a cero, lo que activar\u00e1 una advertencia de use-after-free de refcount cuando se llame a `cache_get`. Para resolver este problema, use `cache_get_rcu` para asegurarse de que `cp` permanezca activo. ------------[ cortar aqu\u00ed ]------------ refcount_t: adici\u00f3n en 0; use-after-free. ADVERTENCIA: CPU: 7 PID: 822 en lib/refcount.c:25 refcount_warn_saturate+0xb1/0x120 CPU: 7 UID: 0 PID: 822 Comm: cat No contaminado 6.12.0-rc3+ #1 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 01/04/2014 RIP: 0010:refcount_warn_saturate+0xb1/0x120 Seguimiento de llamadas:  c_show+0x2fc/0x380 [sunrpc] seq_read_iter+0x589/0x770 seq_read+0x1e5/0x270 proc_reg_read+0xe1/0x140 vfs_read+0x125/0x530 ksys_read+0xc1/0x160 hacer_syscall_64+0x5f/0x170 entrada_SYSCALL_64_despu\u00e9s_hwframe+0x76/0x7e"
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  "id": "CVE-2024-53174",
  "lastModified": "2025-11-03T21:17:37.213",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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  "published": "2024-12-27T14:15:24.703",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
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          "value": "CWE-416"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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