CVE-2024-26957 (GCVE-0-2024-26957)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:19 – Updated: 2026-01-05 10:35
VLAI?
Title
s390/zcrypt: fix reference counting on zcrypt card objects
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: fix reference counting on zcrypt card objects Tests with hot-plugging crytpo cards on KVM guests with debug kernel build revealed an use after free for the load field of the struct zcrypt_card. The reason was an incorrect reference handling of the zcrypt card object which could lead to a free of the zcrypt card object while it was still in use. This is an example of the slab message: kernel: 0x00000000885a7512-0x00000000885a7513 @offset=1298. First byte 0x68 instead of 0x6b kernel: Allocated in zcrypt_card_alloc+0x36/0x70 [zcrypt] age=18046 cpu=3 pid=43 kernel: kmalloc_trace+0x3f2/0x470 kernel: zcrypt_card_alloc+0x36/0x70 [zcrypt] kernel: zcrypt_cex4_card_probe+0x26/0x380 [zcrypt_cex4] kernel: ap_device_probe+0x15c/0x290 kernel: really_probe+0xd2/0x468 kernel: driver_probe_device+0x40/0xf0 kernel: __device_attach_driver+0xc0/0x140 kernel: bus_for_each_drv+0x8c/0xd0 kernel: __device_attach+0x114/0x198 kernel: bus_probe_device+0xb4/0xc8 kernel: device_add+0x4d2/0x6e0 kernel: ap_scan_adapter+0x3d0/0x7c0 kernel: ap_scan_bus+0x5a/0x3b0 kernel: ap_scan_bus_wq_callback+0x40/0x60 kernel: process_one_work+0x26e/0x620 kernel: worker_thread+0x21c/0x440 kernel: Freed in zcrypt_card_put+0x54/0x80 [zcrypt] age=9024 cpu=3 pid=43 kernel: kfree+0x37e/0x418 kernel: zcrypt_card_put+0x54/0x80 [zcrypt] kernel: ap_device_remove+0x4c/0xe0 kernel: device_release_driver_internal+0x1c4/0x270 kernel: bus_remove_device+0x100/0x188 kernel: device_del+0x164/0x3c0 kernel: device_unregister+0x30/0x90 kernel: ap_scan_adapter+0xc8/0x7c0 kernel: ap_scan_bus+0x5a/0x3b0 kernel: ap_scan_bus_wq_callback+0x40/0x60 kernel: process_one_work+0x26e/0x620 kernel: worker_thread+0x21c/0x440 kernel: kthread+0x150/0x168 kernel: __ret_from_fork+0x3c/0x58 kernel: ret_from_fork+0xa/0x30 kernel: Slab 0x00000372022169c0 objects=20 used=18 fp=0x00000000885a7c88 flags=0x3ffff00000000a00(workingset|slab|node=0|zone=1|lastcpupid=0x1ffff) kernel: Object 0x00000000885a74b8 @offset=1208 fp=0x00000000885a7c88 kernel: Redzone 00000000885a74b0: bb bb bb bb bb bb bb bb ........ kernel: Object 00000000885a74b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk kernel: Object 00000000885a74c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk kernel: Object 00000000885a74d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk kernel: Object 00000000885a74e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk kernel: Object 00000000885a74f8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk kernel: Object 00000000885a7508: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 68 4b 6b 6b 6b a5 kkkkkkkkkkhKkkk. kernel: Redzone 00000000885a7518: bb bb bb bb bb bb bb bb ........ kernel: Padding 00000000885a756c: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ kernel: CPU: 0 PID: 387 Comm: systemd-udevd Not tainted 6.8.0-HF #2 kernel: Hardware name: IBM 3931 A01 704 (KVM/Linux) kernel: Call Trace: kernel: [<00000000ca5ab5b8>] dump_stack_lvl+0x90/0x120 kernel: [<00000000c99d78bc>] check_bytes_and_report+0x114/0x140 kernel: [<00000000c99d53cc>] check_object+0x334/0x3f8 kernel: [<00000000c99d820c>] alloc_debug_processing+0xc4/0x1f8 kernel: [<00000000c99d852e>] get_partial_node.part.0+0x1ee/0x3e0 kernel: [<00000000c99d94ec>] ___slab_alloc+0xaf4/0x13c8 kernel: [<00000000c99d9e38>] __slab_alloc.constprop.0+0x78/0xb8 kernel: [<00000000c99dc8dc>] __kmalloc+0x434/0x590 kernel: [<00000000c9b4c0ce>] ext4_htree_store_dirent+0x4e/0x1c0 kernel: [<00000000c9b908a2>] htree_dirblock_to_tree+0x17a/0x3f0 kernel: ---truncated---
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < 7e500849fa558879a1cde43f80c7c048c2437058 (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < 9daddee03de3f231012014dab8ab2b277a116a55 (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < 6470078ab3d8f222115e11c4ec67351f3031b3dd (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < a55677878b93e9ebc31f66d0e2fb93be5e7836a6 (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < b7f6c3630eb3f103115ab0d7613588064f665d0d (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < a64ab862e84e3e698cd351a87cdb504c7fc575ca (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < befb7f889594d23e1b475720cf93efd2f77df000 (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < 394b6d8bbdf9ddee6d5bcf3e1f3e9f23eecd6484 (git)
Affected: e28d2af43614eb86f59812e7221735fc221bbc10 , < 50ed48c80fecbe17218afed4f8bed005c802976c (git)
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    Linux Linux Affected: 4.10
Unaffected: 0 , < 4.10 (semver)
Unaffected: 4.19.312 , ≤ 4.19.* (semver)
Unaffected: 5.4.274 , ≤ 5.4.* (semver)
Unaffected: 5.10.215 , ≤ 5.10.* (semver)
Unaffected: 5.15.154 , ≤ 5.15.* (semver)
Unaffected: 6.1.84 , ≤ 6.1.* (semver)
Unaffected: 6.6.24 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8.3 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/zcrypt: fix reference counting on zcrypt card objects\n\nTests with hot-plugging crytpo cards on KVM guests with debug\nkernel build revealed an use after free for the load field of\nthe struct zcrypt_card. The reason was an incorrect reference\nhandling of the zcrypt card object which could lead to a free\nof the zcrypt card object while it was still in use.\n\nThis is an example of the slab message:\n\n    kernel: 0x00000000885a7512-0x00000000885a7513 @offset=1298. First byte 0x68 instead of 0x6b\n    kernel: Allocated in zcrypt_card_alloc+0x36/0x70 [zcrypt] age=18046 cpu=3 pid=43\n    kernel:  kmalloc_trace+0x3f2/0x470\n    kernel:  zcrypt_card_alloc+0x36/0x70 [zcrypt]\n    kernel:  zcrypt_cex4_card_probe+0x26/0x380 [zcrypt_cex4]\n    kernel:  ap_device_probe+0x15c/0x290\n    kernel:  really_probe+0xd2/0x468\n    kernel:  driver_probe_device+0x40/0xf0\n    kernel:  __device_attach_driver+0xc0/0x140\n    kernel:  bus_for_each_drv+0x8c/0xd0\n    kernel:  __device_attach+0x114/0x198\n    kernel:  bus_probe_device+0xb4/0xc8\n    kernel:  device_add+0x4d2/0x6e0\n    kernel:  ap_scan_adapter+0x3d0/0x7c0\n    kernel:  ap_scan_bus+0x5a/0x3b0\n    kernel:  ap_scan_bus_wq_callback+0x40/0x60\n    kernel:  process_one_work+0x26e/0x620\n    kernel:  worker_thread+0x21c/0x440\n    kernel: Freed in zcrypt_card_put+0x54/0x80 [zcrypt] age=9024 cpu=3 pid=43\n    kernel:  kfree+0x37e/0x418\n    kernel:  zcrypt_card_put+0x54/0x80 [zcrypt]\n    kernel:  ap_device_remove+0x4c/0xe0\n    kernel:  device_release_driver_internal+0x1c4/0x270\n    kernel:  bus_remove_device+0x100/0x188\n    kernel:  device_del+0x164/0x3c0\n    kernel:  device_unregister+0x30/0x90\n    kernel:  ap_scan_adapter+0xc8/0x7c0\n    kernel:  ap_scan_bus+0x5a/0x3b0\n    kernel:  ap_scan_bus_wq_callback+0x40/0x60\n    kernel:  process_one_work+0x26e/0x620\n    kernel:  worker_thread+0x21c/0x440\n    kernel:  kthread+0x150/0x168\n    kernel:  __ret_from_fork+0x3c/0x58\n    kernel:  ret_from_fork+0xa/0x30\n    kernel: Slab 0x00000372022169c0 objects=20 used=18 fp=0x00000000885a7c88 flags=0x3ffff00000000a00(workingset|slab|node=0|zone=1|lastcpupid=0x1ffff)\n    kernel: Object 0x00000000885a74b8 @offset=1208 fp=0x00000000885a7c88\n    kernel: Redzone  00000000885a74b0: bb bb bb bb bb bb bb bb                          ........\n    kernel: Object   00000000885a74b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\n    kernel: Object   00000000885a74c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\n    kernel: Object   00000000885a74d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\n    kernel: Object   00000000885a74e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\n    kernel: Object   00000000885a74f8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\n    kernel: Object   00000000885a7508: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 68 4b 6b 6b 6b a5  kkkkkkkkkkhKkkk.\n    kernel: Redzone  00000000885a7518: bb bb bb bb bb bb bb bb                          ........\n    kernel: Padding  00000000885a756c: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a              ZZZZZZZZZZZZ\n    kernel: CPU: 0 PID: 387 Comm: systemd-udevd Not tainted 6.8.0-HF #2\n    kernel: Hardware name: IBM 3931 A01 704 (KVM/Linux)\n    kernel: Call Trace:\n    kernel:  [\u003c00000000ca5ab5b8\u003e] dump_stack_lvl+0x90/0x120\n    kernel:  [\u003c00000000c99d78bc\u003e] check_bytes_and_report+0x114/0x140\n    kernel:  [\u003c00000000c99d53cc\u003e] check_object+0x334/0x3f8\n    kernel:  [\u003c00000000c99d820c\u003e] alloc_debug_processing+0xc4/0x1f8\n    kernel:  [\u003c00000000c99d852e\u003e] get_partial_node.part.0+0x1ee/0x3e0\n    kernel:  [\u003c00000000c99d94ec\u003e] ___slab_alloc+0xaf4/0x13c8\n    kernel:  [\u003c00000000c99d9e38\u003e] __slab_alloc.constprop.0+0x78/0xb8\n    kernel:  [\u003c00000000c99dc8dc\u003e] __kmalloc+0x434/0x590\n    kernel:  [\u003c00000000c9b4c0ce\u003e] ext4_htree_store_dirent+0x4e/0x1c0\n    kernel:  [\u003c00000000c9b908a2\u003e] htree_dirblock_to_tree+0x17a/0x3f0\n    kernel: \n---truncated---"
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7e500849fa558879a1cde43f80c7c048c2437058"
        },
        {
          "url": "https://git.kernel.org/stable/c/9daddee03de3f231012014dab8ab2b277a116a55"
        },
        {
          "url": "https://git.kernel.org/stable/c/6470078ab3d8f222115e11c4ec67351f3031b3dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/a55677878b93e9ebc31f66d0e2fb93be5e7836a6"
        },
        {
          "url": "https://git.kernel.org/stable/c/b7f6c3630eb3f103115ab0d7613588064f665d0d"
        },
        {
          "url": "https://git.kernel.org/stable/c/a64ab862e84e3e698cd351a87cdb504c7fc575ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/befb7f889594d23e1b475720cf93efd2f77df000"
        },
        {
          "url": "https://git.kernel.org/stable/c/394b6d8bbdf9ddee6d5bcf3e1f3e9f23eecd6484"
        },
        {
          "url": "https://git.kernel.org/stable/c/50ed48c80fecbe17218afed4f8bed005c802976c"
        }
      ],
      "title": "s390/zcrypt: fix reference counting on zcrypt card objects",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26957",
    "datePublished": "2024-05-01T05:19:00.134Z",
    "dateReserved": "2024-02-19T14:20:24.200Z",
    "dateUpdated": "2026-01-05T10:35:05.718Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
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\"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"7e500849fa55\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"9daddee03de3\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"6470078ab3d8\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"a55677878b93\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"b7f6c3630eb3\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"a64ab862e84e\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"befb7f889594\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"394b6d8bbdf9\", \"versionType\": \"custom\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f4\", \"lessThan\": \"50ed48c80fec\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-17T15:55:37.353Z\"}}], \"cna\": {\"title\": \"s390/zcrypt: fix reference counting on zcrypt card objects\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"7e500849fa558879a1cde43f80c7c048c2437058\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"9daddee03de3f231012014dab8ab2b277a116a55\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"6470078ab3d8f222115e11c4ec67351f3031b3dd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"a55677878b93e9ebc31f66d0e2fb93be5e7836a6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"b7f6c3630eb3f103115ab0d7613588064f665d0d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"a64ab862e84e3e698cd351a87cdb504c7fc575ca\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"befb7f889594d23e1b475720cf93efd2f77df000\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"394b6d8bbdf9ddee6d5bcf3e1f3e9f23eecd6484\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e28d2af43614eb86f59812e7221735fc221bbc10\", \"lessThan\": \"50ed48c80fecbe17218afed4f8bed005c802976c\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/s390/crypto/zcrypt_api.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.10\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.10\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.312\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.274\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.215\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.154\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.84\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.24\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.7.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.7.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/s390/crypto/zcrypt_api.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/7e500849fa558879a1cde43f80c7c048c2437058\"}, {\"url\": \"https://git.kernel.org/stable/c/9daddee03de3f231012014dab8ab2b277a116a55\"}, {\"url\": \"https://git.kernel.org/stable/c/6470078ab3d8f222115e11c4ec67351f3031b3dd\"}, {\"url\": \"https://git.kernel.org/stable/c/a55677878b93e9ebc31f66d0e2fb93be5e7836a6\"}, {\"url\": \"https://git.kernel.org/stable/c/b7f6c3630eb3f103115ab0d7613588064f665d0d\"}, {\"url\": \"https://git.kernel.org/stable/c/a64ab862e84e3e698cd351a87cdb504c7fc575ca\"}, {\"url\": \"https://git.kernel.org/stable/c/befb7f889594d23e1b475720cf93efd2f77df000\"}, {\"url\": \"https://git.kernel.org/stable/c/394b6d8bbdf9ddee6d5bcf3e1f3e9f23eecd6484\"}, {\"url\": \"https://git.kernel.org/stable/c/50ed48c80fecbe17218afed4f8bed005c802976c\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ns390/zcrypt: fix reference counting on zcrypt card objects\\n\\nTests with hot-plugging crytpo cards on KVM guests with debug\\nkernel build revealed an use after free for the load field of\\nthe struct zcrypt_card. The reason was an incorrect reference\\nhandling of the zcrypt card object which could lead to a free\\nof the zcrypt card object while it was still in use.\\n\\nThis is an example of the slab message:\\n\\n    kernel: 0x00000000885a7512-0x00000000885a7513 @offset=1298. First byte 0x68 instead of 0x6b\\n    kernel: Allocated in zcrypt_card_alloc+0x36/0x70 [zcrypt] age=18046 cpu=3 pid=43\\n    kernel:  kmalloc_trace+0x3f2/0x470\\n    kernel:  zcrypt_card_alloc+0x36/0x70 [zcrypt]\\n    kernel:  zcrypt_cex4_card_probe+0x26/0x380 [zcrypt_cex4]\\n    kernel:  ap_device_probe+0x15c/0x290\\n    kernel:  really_probe+0xd2/0x468\\n    kernel:  driver_probe_device+0x40/0xf0\\n    kernel:  __device_attach_driver+0xc0/0x140\\n    kernel:  bus_for_each_drv+0x8c/0xd0\\n    kernel:  __device_attach+0x114/0x198\\n    kernel:  bus_probe_device+0xb4/0xc8\\n    kernel:  device_add+0x4d2/0x6e0\\n    kernel:  ap_scan_adapter+0x3d0/0x7c0\\n    kernel:  ap_scan_bus+0x5a/0x3b0\\n    kernel:  ap_scan_bus_wq_callback+0x40/0x60\\n    kernel:  process_one_work+0x26e/0x620\\n    kernel:  worker_thread+0x21c/0x440\\n    kernel: Freed in zcrypt_card_put+0x54/0x80 [zcrypt] age=9024 cpu=3 pid=43\\n    kernel:  kfree+0x37e/0x418\\n    kernel:  zcrypt_card_put+0x54/0x80 [zcrypt]\\n    kernel:  ap_device_remove+0x4c/0xe0\\n    kernel:  device_release_driver_internal+0x1c4/0x270\\n    kernel:  bus_remove_device+0x100/0x188\\n    kernel:  device_del+0x164/0x3c0\\n    kernel:  device_unregister+0x30/0x90\\n    kernel:  ap_scan_adapter+0xc8/0x7c0\\n    kernel:  ap_scan_bus+0x5a/0x3b0\\n    kernel:  ap_scan_bus_wq_callback+0x40/0x60\\n    kernel:  process_one_work+0x26e/0x620\\n    kernel:  worker_thread+0x21c/0x440\\n    kernel:  kthread+0x150/0x168\\n    kernel:  __ret_from_fork+0x3c/0x58\\n    kernel:  ret_from_fork+0xa/0x30\\n    kernel: Slab 0x00000372022169c0 objects=20 used=18 fp=0x00000000885a7c88 flags=0x3ffff00000000a00(workingset|slab|node=0|zone=1|lastcpupid=0x1ffff)\\n    kernel: Object 0x00000000885a74b8 @offset=1208 fp=0x00000000885a7c88\\n    kernel: Redzone  00000000885a74b0: bb bb bb bb bb bb bb bb                          ........\\n    kernel: Object   00000000885a74b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\\n    kernel: Object   00000000885a74c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\\n    kernel: Object   00000000885a74d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\\n    kernel: Object   00000000885a74e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\\n    kernel: Object   00000000885a74f8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk\\n    kernel: Object   00000000885a7508: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 68 4b 6b 6b 6b a5  kkkkkkkkkkhKkkk.\\n    kernel: Redzone  00000000885a7518: bb bb bb bb bb bb bb bb                          ........\\n    kernel: Padding  00000000885a756c: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a              ZZZZZZZZZZZZ\\n    kernel: CPU: 0 PID: 387 Comm: systemd-udevd Not tainted 6.8.0-HF #2\\n    kernel: Hardware name: IBM 3931 A01 704 (KVM/Linux)\\n    kernel: Call Trace:\\n    kernel:  [\u003c00000000ca5ab5b8\u003e] dump_stack_lvl+0x90/0x120\\n    kernel:  [\u003c00000000c99d78bc\u003e] check_bytes_and_report+0x114/0x140\\n    kernel:  [\u003c00000000c99d53cc\u003e] check_object+0x334/0x3f8\\n    kernel:  [\u003c00000000c99d820c\u003e] alloc_debug_processing+0xc4/0x1f8\\n    kernel:  [\u003c00000000c99d852e\u003e] get_partial_node.part.0+0x1ee/0x3e0\\n    kernel:  [\u003c00000000c99d94ec\u003e] ___slab_alloc+0xaf4/0x13c8\\n    kernel:  [\u003c00000000c99d9e38\u003e] __slab_alloc.constprop.0+0x78/0xb8\\n    kernel:  [\u003c00000000c99dc8dc\u003e] __kmalloc+0x434/0x590\\n    kernel:  [\u003c00000000c9b4c0ce\u003e] ext4_htree_store_dirent+0x4e/0x1c0\\n    kernel:  [\u003c00000000c9b908a2\u003e] htree_dirblock_to_tree+0x17a/0x3f0\\n    kernel: \\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.312\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.274\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.215\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.154\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.84\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.24\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.7.12\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.3\", \"versionStartIncluding\": \"4.10\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9\", \"versionStartIncluding\": \"4.10\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:35:05.718Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-26957\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:35:05.718Z\", \"dateReserved\": \"2024-02-19T14:20:24.200Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-01T05:19:00.134Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.