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CVE-2023-53108 (GCVE-0-2023-53108)

Vulnerability from cvelistv5 – Published: 2025-05-02 15:55 – Updated: 2026-05-11 19:38
VLAI
Title
net/iucv: Fix size of interrupt data
Summary
In the Linux kernel, the following vulnerability has been resolved: net/iucv: Fix size of interrupt data iucv_irq_data needs to be 4 bytes larger. These bytes are not used by the iucv module, but written by the z/VM hypervisor in case a CPU is deconfigured. Reported as: BUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten ----------------------------------------------------------------------------- 0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc Allocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1 __kmem_cache_alloc_node+0x166/0x450 kmalloc_node_trace+0x3a/0x70 iucv_cpu_prepare+0x44/0xd0 cpuhp_invoke_callback+0x156/0x2f0 cpuhp_issue_call+0xf0/0x298 __cpuhp_setup_state_cpuslocked+0x136/0x338 __cpuhp_setup_state+0xf4/0x288 iucv_init+0xf4/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Freed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1 __kmem_cache_free+0x308/0x358 iucv_init+0x92/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Slab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab|head|node=0|zone=0| Object 0x0000000000400540 @offset=1344 fp=0x0000000000000000 Redzone 0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Object 0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00 ................ Object 0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2 ................ Object 0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc ................ Object 0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400580: cc cc cc cc cc cc cc cc ........ Padding 00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ CPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1 Hardware name: IBM 3931 A01 704 (z/VM 7.3.0) Call Trace: [<000000032aa034ec>] dump_stack_lvl+0xac/0x100 [<0000000329f5a6cc>] check_bytes_and_report+0x104/0x140 [<0000000329f5aa78>] check_object+0x370/0x3c0 [<0000000329f5ede6>] free_debug_processing+0x15e/0x348 [<0000000329f5f06a>] free_to_partial_list+0x9a/0x2f0 [<0000000329f5f4a4>] __slab_free+0x1e4/0x3a8 [<0000000329f61768>] __kmem_cache_free+0x308/0x358 [<000000032a91465c>] iucv_cpu_dead+0x6c/0x88 [<0000000329c2fc66>] cpuhp_invoke_callback+0x156/0x2f0 [<000000032aa062da>] _cpu_down.constprop.0+0x22a/0x5e0 [<0000000329c3243e>] cpu_device_down+0x4e/0x78 [<000000032a61dee0>] device_offline+0xc8/0x118 [<000000032a61e048>] online_store+0x60/0xe0 [<000000032a08b6b0>] kernfs_fop_write_iter+0x150/0x1e8 [<0000000329fab65c>] vfs_write+0x174/0x360 [<0000000329fab9fc>] ksys_write+0x74/0x100 [<000000032aa03a5a>] __do_syscall+0x1da/0x208 [<000000032aa177b2>] system_call+0x82/0xb0 INFO: lockdep is turned off. FIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc FIX dma-kmalloc-64: Object at 0x0000000000400540 not freed
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < a908eae0f71811afee86be7088692f1aa5855c3b (git)
Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < b0d2bb5e31a693ebc8888eb407f8a257a3680efa (git)
Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < 71da5991b6438ad6da13ceb25465ee2760a1c52f (git)
Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < bd2e78462ae18484e55ae4d285df2c86b86bdd12 (git)
Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < 3cfdefdaaa4b2a77e84d0db5e0a47a7aa3bb615a (git)
Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < c78f1345db4e4b3b78f9b768f4074ebd60abe966 (git)
Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < 93a970494881004c348d8feb38463ee72496e99a (git)
Affected: 2356f4cb191100a5e92d537f13e5efdbc697e9cb , < 3d87debb8ed2649608ff432699e7c961c0c6f03b (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.21
Unaffected: 0 , < 2.6.21 (semver)
Unaffected: 4.14.311 , ≤ 4.14.* (semver)
Unaffected: 4.19.279 , ≤ 4.19.* (semver)
Unaffected: 5.4.238 , ≤ 5.4.* (semver)
Unaffected: 5.10.176 , ≤ 5.10.* (semver)
Unaffected: 5.15.104 , ≤ 5.15.* (semver)
Unaffected: 6.1.21 , ≤ 6.1.* (semver)
Unaffected: 6.2.8 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/iucv/iucv.c"
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.21"
            },
            {
              "lessThan": "2.6.21",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.311",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.279",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.238",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.176",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.311",
                  "versionStartIncluding": "2.6.21",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.279",
                  "versionStartIncluding": "2.6.21",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "5.4.238",
                  "versionStartIncluding": "2.6.21",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.176",
                  "versionStartIncluding": "2.6.21",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "2.6.21",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.21",
                  "versionStartIncluding": "2.6.21",
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                },
                {
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                  "vulnerable": true
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                {
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/iucv: Fix size of interrupt data\n\niucv_irq_data needs to be 4 bytes larger.\nThese bytes are not used by the iucv module, but written by\nthe z/VM hypervisor in case a CPU is deconfigured.\n\nReported as:\nBUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten\n-----------------------------------------------------------------------------\n0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc\nAllocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1\n__kmem_cache_alloc_node+0x166/0x450\nkmalloc_node_trace+0x3a/0x70\niucv_cpu_prepare+0x44/0xd0\ncpuhp_invoke_callback+0x156/0x2f0\ncpuhp_issue_call+0xf0/0x298\n__cpuhp_setup_state_cpuslocked+0x136/0x338\n__cpuhp_setup_state+0xf4/0x288\niucv_init+0xf4/0x280\ndo_one_initcall+0x78/0x390\ndo_initcalls+0x11a/0x140\nkernel_init_freeable+0x25e/0x2a0\nkernel_init+0x2e/0x170\n__ret_from_fork+0x3c/0x58\nret_from_fork+0xa/0x40\nFreed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1\n__kmem_cache_free+0x308/0x358\niucv_init+0x92/0x280\ndo_one_initcall+0x78/0x390\ndo_initcalls+0x11a/0x140\nkernel_init_freeable+0x25e/0x2a0\nkernel_init+0x2e/0x170\n__ret_from_fork+0x3c/0x58\nret_from_fork+0xa/0x40\nSlab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab|head|node=0|zone=0|\nObject 0x0000000000400540 @offset=1344 fp=0x0000000000000000\nRedzone  0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\nRedzone  0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\nRedzone  0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\nRedzone  0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\nObject   0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00  ................\nObject   0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2  ................\nObject   0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc  ................\nObject   0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\nRedzone  0000000000400580: cc cc cc cc cc cc cc cc                          ........\nPadding  00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ\nPadding  00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ\nPadding  00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a              ZZZZZZZZZZZZ\nCPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1\nHardware name: IBM 3931 A01 704 (z/VM 7.3.0)\nCall Trace:\n[\u003c000000032aa034ec\u003e] dump_stack_lvl+0xac/0x100\n[\u003c0000000329f5a6cc\u003e] check_bytes_and_report+0x104/0x140\n[\u003c0000000329f5aa78\u003e] check_object+0x370/0x3c0\n[\u003c0000000329f5ede6\u003e] free_debug_processing+0x15e/0x348\n[\u003c0000000329f5f06a\u003e] free_to_partial_list+0x9a/0x2f0\n[\u003c0000000329f5f4a4\u003e] __slab_free+0x1e4/0x3a8\n[\u003c0000000329f61768\u003e] __kmem_cache_free+0x308/0x358\n[\u003c000000032a91465c\u003e] iucv_cpu_dead+0x6c/0x88\n[\u003c0000000329c2fc66\u003e] cpuhp_invoke_callback+0x156/0x2f0\n[\u003c000000032aa062da\u003e] _cpu_down.constprop.0+0x22a/0x5e0\n[\u003c0000000329c3243e\u003e] cpu_device_down+0x4e/0x78\n[\u003c000000032a61dee0\u003e] device_offline+0xc8/0x118\n[\u003c000000032a61e048\u003e] online_store+0x60/0xe0\n[\u003c000000032a08b6b0\u003e] kernfs_fop_write_iter+0x150/0x1e8\n[\u003c0000000329fab65c\u003e] vfs_write+0x174/0x360\n[\u003c0000000329fab9fc\u003e] ksys_write+0x74/0x100\n[\u003c000000032aa03a5a\u003e] __do_syscall+0x1da/0x208\n[\u003c000000032aa177b2\u003e] system_call+0x82/0xb0\nINFO: lockdep is turned off.\nFIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc\nFIX dma-kmalloc-64: Object at 0x0000000000400540 not freed"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:38:39.833Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a908eae0f71811afee86be7088692f1aa5855c3b"
        },
        {
          "url": "https://git.kernel.org/stable/c/b0d2bb5e31a693ebc8888eb407f8a257a3680efa"
        },
        {
          "url": "https://git.kernel.org/stable/c/71da5991b6438ad6da13ceb25465ee2760a1c52f"
        },
        {
          "url": "https://git.kernel.org/stable/c/bd2e78462ae18484e55ae4d285df2c86b86bdd12"
        },
        {
          "url": "https://git.kernel.org/stable/c/3cfdefdaaa4b2a77e84d0db5e0a47a7aa3bb615a"
        },
        {
          "url": "https://git.kernel.org/stable/c/c78f1345db4e4b3b78f9b768f4074ebd60abe966"
        },
        {
          "url": "https://git.kernel.org/stable/c/93a970494881004c348d8feb38463ee72496e99a"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d87debb8ed2649608ff432699e7c961c0c6f03b"
        }
      ],
      "title": "net/iucv: Fix size of interrupt data",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53108",
    "datePublished": "2025-05-02T15:55:48.867Z",
    "dateReserved": "2025-05-02T15:51:43.553Z",
    "dateUpdated": "2026-05-11T19:38:39.833Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-53108",
      "date": "2026-09-16",
      "epss": "0.00194",
      "percentile": "0.09331"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53108\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-02T16:15:29.713\",\"lastModified\":\"2026-06-17T06:44:18.790\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/iucv: Fix size of interrupt data\\n\\niucv_irq_data needs to be 4 bytes larger.\\nThese bytes are not used by the iucv module, but written by\\nthe z/VM hypervisor in case a CPU is deconfigured.\\n\\nReported as:\\nBUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten\\n-----------------------------------------------------------------------------\\n0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc\\nAllocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1\\n__kmem_cache_alloc_node+0x166/0x450\\nkmalloc_node_trace+0x3a/0x70\\niucv_cpu_prepare+0x44/0xd0\\ncpuhp_invoke_callback+0x156/0x2f0\\ncpuhp_issue_call+0xf0/0x298\\n__cpuhp_setup_state_cpuslocked+0x136/0x338\\n__cpuhp_setup_state+0xf4/0x288\\niucv_init+0xf4/0x280\\ndo_one_initcall+0x78/0x390\\ndo_initcalls+0x11a/0x140\\nkernel_init_freeable+0x25e/0x2a0\\nkernel_init+0x2e/0x170\\n__ret_from_fork+0x3c/0x58\\nret_from_fork+0xa/0x40\\nFreed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1\\n__kmem_cache_free+0x308/0x358\\niucv_init+0x92/0x280\\ndo_one_initcall+0x78/0x390\\ndo_initcalls+0x11a/0x140\\nkernel_init_freeable+0x25e/0x2a0\\nkernel_init+0x2e/0x170\\n__ret_from_fork+0x3c/0x58\\nret_from_fork+0xa/0x40\\nSlab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab|head|node=0|zone=0|\\nObject 0x0000000000400540 @offset=1344 fp=0x0000000000000000\\nRedzone  0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\\nRedzone  0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\\nRedzone  0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\\nRedzone  0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\\nObject   0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00  ................\\nObject   0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2  ................\\nObject   0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc  ................\\nObject   0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc  ................\\nRedzone  0000000000400580: cc cc cc cc cc cc cc cc                          ........\\nPadding  00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ\\nPadding  00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ\\nPadding  00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a              ZZZZZZZZZZZZ\\nCPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1\\nHardware name: IBM 3931 A01 704 (z/VM 7.3.0)\\nCall Trace:\\n[\u003c000000032aa034ec\u003e] dump_stack_lvl+0xac/0x100\\n[\u003c0000000329f5a6cc\u003e] check_bytes_and_report+0x104/0x140\\n[\u003c0000000329f5aa78\u003e] check_object+0x370/0x3c0\\n[\u003c0000000329f5ede6\u003e] free_debug_processing+0x15e/0x348\\n[\u003c0000000329f5f06a\u003e] free_to_partial_list+0x9a/0x2f0\\n[\u003c0000000329f5f4a4\u003e] __slab_free+0x1e4/0x3a8\\n[\u003c0000000329f61768\u003e] __kmem_cache_free+0x308/0x358\\n[\u003c000000032a91465c\u003e] iucv_cpu_dead+0x6c/0x88\\n[\u003c0000000329c2fc66\u003e] cpuhp_invoke_callback+0x156/0x2f0\\n[\u003c000000032aa062da\u003e] _cpu_down.constprop.0+0x22a/0x5e0\\n[\u003c0000000329c3243e\u003e] cpu_device_down+0x4e/0x78\\n[\u003c000000032a61dee0\u003e] device_offline+0xc8/0x118\\n[\u003c000000032a61e048\u003e] online_store+0x60/0xe0\\n[\u003c000000032a08b6b0\u003e] kernfs_fop_write_iter+0x150/0x1e8\\n[\u003c0000000329fab65c\u003e] vfs_write+0x174/0x360\\n[\u003c0000000329fab9fc\u003e] ksys_write+0x74/0x100\\n[\u003c000000032aa03a5a\u003e] __do_syscall+0x1da/0x208\\n[\u003c000000032aa177b2\u003e] system_call+0x82/0xb0\\nINFO: lockdep is turned off.\\nFIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc\\nFIX dma-kmalloc-64: Object at 0x0000000000400540 not freed\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/iucv: Se corrige que el tama\u00f1o de los datos de interrupci\u00f3n iucv_irq_data deba ser 4 bytes mayor. Estos bytes no son utilizados por el m\u00f3dulo iucv, sino por el hipervisor z/VM en caso de desconfiguraci\u00f3n de una CPU. Reportado como: BUG dma-kmalloc-64 (No contaminado): kmalloc Redzone sobrescrito ----------------------------------------------------------------------------- 0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc Allocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1 __kmem_cache_alloc_node+0x166/0x450 kmalloc_node_trace+0x3a/0x70 iucv_cpu_prepare+0x44/0xd0 cpuhp_invoke_callback+0x156/0x2f0 cpuhp_issue_call+0xf0/0x298 __cpuhp_setup_state_cpuslocked+0x136/0x338 __cpuhp_setup_state+0xf4/0x288 iucv_init+0xf4/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Freed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1 __kmem_cache_free+0x308/0x358 iucv_init+0x92/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Slab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab|head|node=0|zone=0| Object 0x0000000000400540 @offset=1344 fp=0x0000000000000000 Redzone 0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Object 0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00 ................ Object 0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2 ................ Object 0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc ................ Object 0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400580: cc cc cc cc cc cc cc cc ........ Padding 00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ CPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1 Hardware name: IBM 3931 A01 704 (z/VM 7.3.0) Rastreo de llamadas: [\u0026lt;000000032aa034ec\u0026gt;] dump_stack_lvl+0xac/0x100 [\u0026lt;0000000329f5a6cc\u0026gt;] check_bytes_and_report+0x104/0x140 [\u0026lt;0000000329f5aa78\u0026gt;] check_object+0x370/0x3c0 [\u0026lt;0000000329f5ede6\u0026gt;] free_debug_processing+0x15e/0x348 [\u0026lt;0000000329f5f06a\u0026gt;] free_to_partial_list+0x9a/0x2f0 [\u0026lt;0000000329f5f4a4\u0026gt;] __slab_free+0x1e4/0x3a8 [\u0026lt;0000000329f61768\u0026gt;] __kmem_cache_free+0x308/0x358 [\u0026lt;000000032a91465c\u0026gt;] iucv_cpu_dead+0x6c/0x88 [\u0026lt;0000000329c2fc66\u0026gt;] cpuhp_invoke_callback+0x156/0x2f0 [\u0026lt;000000032aa062da\u0026gt;] _cpu_down.constprop.0+0x22a/0x5e0 [\u0026lt;0000000329c3243e\u0026gt;] cpu_device_down+0x4e/0x78 [\u0026lt;000000032a61dee0\u0026gt;] device_offline+0xc8/0x118 [\u0026lt;000000032a61e048\u0026gt;] online_store+0x60/0xe0 [\u0026lt;000000032a08b6b0\u0026gt;] kernfs_fop_write_iter+0x150/0x1e8 [\u0026lt;0000000329fab65c\u0026gt;] vfs_write+0x174/0x360 [\u0026lt;0000000329fab9fc\u0026gt;] ksys_write+0x74/0x100 [\u0026lt;000000032aa03a5a\u0026gt;] __do_syscall+0x1da/0x208 [\u0026lt;000000032aa177b2\u0026gt;] system_call+0x82/0xb0 INFORMACI\u00d3N: LockDep est\u00e1 desactivado. CORRECCI\u00d3N dma-kmalloc-64: Restaurando la zona roja de kmalloc 0x0000000000400564-0x0000000000400567=0xcc CORRECCI\u00d3N dma-kmalloc-64: Objeto en 0x0000000000400540 no liberado.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/iucv/iucv.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"a908eae0f71811afee86be7088692f1aa5855c3b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"b0d2bb5e31a693ebc8888eb407f8a257a3680efa\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"71da5991b6438ad6da13ceb25465ee2760a1c52f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"bd2e78462ae18484e55ae4d285df2c86b86bdd12\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"3cfdefdaaa4b2a77e84d0db5e0a47a7aa3bb615a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"c78f1345db4e4b3b78f9b768f4074ebd60abe966\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"93a970494881004c348d8feb38463ee72496e99a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2356f4cb191100a5e92d537f13e5efdbc697e9cb\",\"lessThan\":\"3d87debb8ed2649608ff432699e7c961c0c6f03b\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/iucv/iucv.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.21\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.21\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.311\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.279\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.238\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.176\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.104\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.21\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.2.8\",\"lessThanOrEqual\":\"6.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.3\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.21\",\"versionEndExcluding\":\"4.14.311\",\"matchCriteriaId\":\"3D3410A9-60E0-428F-9B04-C04996C107EA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.279\",\"matchCriteriaId\":\"8E21A6F0-EF6A-4BB1-BEC0-09275FA55481\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.238\",\"matchCriteriaId\":\"5FF05A65-6B32-4A9C-905D-6E0F17C6803B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.176\",\"matchCriteriaId\":\"7DA7FEF3-FE10-4D78-94E4-BDCDA7371DD5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.104\",\"matchCriteriaId\":\"EB8A3D70-3EE1-4B1C-8A21-21CA7356DCA7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.21\",\"matchCriteriaId\":\"1F1CA6A9-8F4D-408D-9116-868EC067DCD9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.2.8\",\"matchCriteriaId\":\"4011EC6B-7786-4709-B765-186FA31D6F7F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.3:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8E3B0E8-FA27-4305-87BB-AF6C25B160CB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.3:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"A47F0FC3-CE52-4BA1-BA51-22F783938431\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3cfdefdaaa4b2a77e84d0db5e0a47a7aa3bb615a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3d87debb8ed2649608ff432699e7c961c0c6f03b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/71da5991b6438ad6da13ceb25465ee2760a1c52f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/93a970494881004c348d8feb38463ee72496e99a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a908eae0f71811afee86be7088692f1aa5855c3b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b0d2bb5e31a693ebc8888eb407f8a257a3680efa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/bd2e78462ae18484e55ae4d285df2c86b86bdd12\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c78f1345db4e4b3b78f9b768f4074ebd60abe966\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-21T18:51:17+00:00",
      "cve": "CVE-2023-53108",
      "id": "CVE-2023-53108",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:fixed": "120",
      "product_status:known_affected": "166",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net/iucv: Fix size of interrupt data",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53108.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T01:01:15Z",
      "cve": "CVE-2023-53108",
      "id": "CVE-2023-53108",
      "initial_release_date": "2025-05-03T02:50:32Z",
      "product_status:known_affected": "339",
      "product_status:known_not_affected": "335",
      "product_status:recommended": "286",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53108",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53108.json",
      "version": "37"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.