ghsa-xgmg-hrgx-6gqq
Vulnerability from github
Published
2024-11-09 12:30
Modified
2024-11-13 21:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

spi: spi-fsl-dspi: Fix crash when not using GPIO chip select

Add check for the return value of spi_get_csgpiod() to avoid passing a NULL pointer to gpiod_direction_output(), preventing a crash when GPIO chip select is not used.

Fix below crash: [ 4.251960] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 4.260762] Mem abort info: [ 4.263556] ESR = 0x0000000096000004 [ 4.267308] EC = 0x25: DABT (current EL), IL = 32 bits [ 4.272624] SET = 0, FnV = 0 [ 4.275681] EA = 0, S1PTW = 0 [ 4.278822] FSC = 0x04: level 0 translation fault [ 4.283704] Data abort info: [ 4.286583] ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 [ 4.292074] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 4.297130] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 4.302445] [0000000000000000] user address but active_mm is swapper [ 4.308805] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP [ 4.315072] Modules linked in: [ 4.318124] CPU: 2 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc4-next-20241023-00008-ga20ec42c5fc1 #359 [ 4.328130] Hardware name: LS1046A QDS Board (DT) [ 4.332832] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 4.339794] pc : gpiod_direction_output+0x34/0x5c [ 4.344505] lr : gpiod_direction_output+0x18/0x5c [ 4.349208] sp : ffff80008003b8f0 [ 4.352517] x29: ffff80008003b8f0 x28: 0000000000000000 x27: ffffc96bcc7e9068 [ 4.359659] x26: ffffc96bcc6e00b0 x25: ffffc96bcc598398 x24: ffff447400132810 [ 4.366800] x23: 0000000000000000 x22: 0000000011e1a300 x21: 0000000000020002 [ 4.373940] x20: 0000000000000000 x19: 0000000000000000 x18: ffffffffffffffff [ 4.381081] x17: ffff44740016e600 x16: 0000000500000003 x15: 0000000000000007 [ 4.388221] x14: 0000000000989680 x13: 0000000000020000 x12: 000000000000001e [ 4.395362] x11: 0044b82fa09b5a53 x10: 0000000000000019 x9 : 0000000000000008 [ 4.402502] x8 : 0000000000000002 x7 : 0000000000000007 x6 : 0000000000000000 [ 4.409641] x5 : 0000000000000200 x4 : 0000000002000000 x3 : 0000000000000000 [ 4.416781] x2 : 0000000000022202 x1 : 0000000000000000 x0 : 0000000000000000 [ 4.423921] Call trace: [ 4.426362] gpiod_direction_output+0x34/0x5c (P) [ 4.431067] gpiod_direction_output+0x18/0x5c (L) [ 4.435771] dspi_setup+0x220/0x334

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50224"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-09T11:15:07Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: spi-fsl-dspi: Fix crash when not using GPIO chip select\n\nAdd check for the return value of spi_get_csgpiod() to avoid passing a NULL\npointer to gpiod_direction_output(), preventing a crash when GPIO chip\nselect is not used.\n\nFix below crash:\n[    4.251960] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[    4.260762] Mem abort info:\n[    4.263556]   ESR = 0x0000000096000004\n[    4.267308]   EC = 0x25: DABT (current EL), IL = 32 bits\n[    4.272624]   SET = 0, FnV = 0\n[    4.275681]   EA = 0, S1PTW = 0\n[    4.278822]   FSC = 0x04: level 0 translation fault\n[    4.283704] Data abort info:\n[    4.286583]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000\n[    4.292074]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0\n[    4.297130]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0\n[    4.302445] [0000000000000000] user address but active_mm is swapper\n[    4.308805] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP\n[    4.315072] Modules linked in:\n[    4.318124] CPU: 2 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.12.0-rc4-next-20241023-00008-ga20ec42c5fc1 #359\n[    4.328130] Hardware name: LS1046A QDS Board (DT)\n[    4.332832] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[    4.339794] pc : gpiod_direction_output+0x34/0x5c\n[    4.344505] lr : gpiod_direction_output+0x18/0x5c\n[    4.349208] sp : ffff80008003b8f0\n[    4.352517] x29: ffff80008003b8f0 x28: 0000000000000000 x27: ffffc96bcc7e9068\n[    4.359659] x26: ffffc96bcc6e00b0 x25: ffffc96bcc598398 x24: ffff447400132810\n[    4.366800] x23: 0000000000000000 x22: 0000000011e1a300 x21: 0000000000020002\n[    4.373940] x20: 0000000000000000 x19: 0000000000000000 x18: ffffffffffffffff\n[    4.381081] x17: ffff44740016e600 x16: 0000000500000003 x15: 0000000000000007\n[    4.388221] x14: 0000000000989680 x13: 0000000000020000 x12: 000000000000001e\n[    4.395362] x11: 0044b82fa09b5a53 x10: 0000000000000019 x9 : 0000000000000008\n[    4.402502] x8 : 0000000000000002 x7 : 0000000000000007 x6 : 0000000000000000\n[    4.409641] x5 : 0000000000000200 x4 : 0000000002000000 x3 : 0000000000000000\n[    4.416781] x2 : 0000000000022202 x1 : 0000000000000000 x0 : 0000000000000000\n[    4.423921] Call trace:\n[    4.426362]  gpiod_direction_output+0x34/0x5c (P)\n[    4.431067]  gpiod_direction_output+0x18/0x5c (L)\n[    4.435771]  dspi_setup+0x220/0x334",
  "id": "GHSA-xgmg-hrgx-6gqq",
  "modified": "2024-11-13T21:30:32Z",
  "published": "2024-11-09T12:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50224"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25f00a13dccf8e45441265768de46c8bf58e08f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89f74c968319d040739d6238e1c3a4caa16a5a00"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e79c1f1c9100b4adc91c6512985db2cc961aafaa"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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