{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53024", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.379Z", "datePublished": "2026-06-24T16:29:33.184Z", "dateUpdated": "2026-06-28T06:38:07.497Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-28T06:38:07.497Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngreybus: raw: fix use-after-free if write is called after disconnect\n\nIf a user writes to the chardev after disconnect has been called, the\nkernel panics with the following trace (with\nCONFIG_INIT_ON_FREE_DEFAULT_ON=y):\n\n BUG: kernel NULL pointer dereference, address: 0000000000000218\n ...\n Call Trace:\n <TASK>\n gb_operation_create_common+0x61/0x180\n gb_operation_create_flags+0x28/0xa0\n gb_operation_sync_timeout+0x6f/0x100\n raw_write+0x7b/0xc7 [gb_raw]\n vfs_write+0xcf/0x420\n ? task_mm_cid_work+0x136/0x220\n ksys_write+0x63/0xe0\n do_syscall_64+0xa4/0x290\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nDisconnect calls gb_connection_destroy, which ends up freeing the\nconnection object. When gb_operation_sync is called in the write file\noperations, its gets a freed connection as parameter and the kernel\npanics.\n\nThe gb_connection_destroy cannot be moved out of the disconnect\nfunction, as the Greybus subsystem expect all connections belonging to a\nbundle to be destroyed when disconnect returns.\n\nTo prevent this bug, use a rw lock to synchronize access between write\nand disconnect. This guarantees that the write function doesn't try\nto use a disconnected connection."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/greybus/raw.c"], "versions": [{"version": "e806c7fb8e9bae87fc23958c3789f2c2f96f54a4", "lessThan": "48d6c32bc049abd114e8f0836c0e7d7cbfba7827", "status": "affected", "versionType": "git"}, {"version": "e806c7fb8e9bae87fc23958c3789f2c2f96f54a4", "lessThan": "84265cbd96b97058ef67e3f8be3933667a000835", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/greybus/raw.c"], "versions": [{"version": "4.9", "status": "affected"}, {"version": "0", "lessThan": "4.9", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/48d6c32bc049abd114e8f0836c0e7d7cbfba7827"}, {"url": "https://git.kernel.org/stable/c/84265cbd96b97058ef67e3f8be3933667a000835"}], "title": "greybus: raw: fix use-after-free if write is called after disconnect", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{}

{"bugzilla": {"description": "kernel: greybus: raw: fix use-after-free if write is called after disconnect", "id": "2492342", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492342"}, "csaw": false, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ngreybus: raw: fix use-after-free if write is called after disconnect\nIf a user writes to the chardev after disconnect has been called, the\nkernel panics with the following trace (with\nCONFIG_INIT_ON_FREE_DEFAULT_ON=y):\nBUG: kernel NULL pointer dereference, address: 0000000000000218\n...\nCall Trace:\n<TASK>\ngb_operation_create_common+0x61/0x180\ngb_operation_create_flags+0x28/0xa0\ngb_operation_sync_timeout+0x6f/0x100\nraw_write+0x7b/0xc7 [gb_raw]\nvfs_write+0xcf/0x420\n? task_mm_cid_work+0x136/0x220\nksys_write+0x63/0xe0\ndo_syscall_64+0xa4/0x290\nentry_SYSCALL_64_after_hwframe+0x77/0x7f\nDisconnect calls gb_connection_destroy, which ends up freeing the\nconnection object. When gb_operation_sync is called in the write file\noperations, its gets a freed connection as parameter and the kernel\npanics.\nThe gb_connection_destroy cannot be moved out of the disconnect\nfunction, as the Greybus subsystem expect all connections belonging to a\nbundle to be destroyed when disconnect returns.\nTo prevent this bug, use a rw lock to synchronize access between write\nand disconnect. This guarantees that the write function doesn't try\nto use a disconnected connection.", "A flaw was found in the Linux kernel's Greybus raw subsystem. A local user could trigger a use-after-free vulnerability by attempting to write to a character device (chardev) after it has been disconnected. This can lead to a kernel panic, resulting in a Denial of Service (DoS) for the system."], "name": "CVE-2026-53024", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53024\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53024\nhttps://lore.kernel.org/linux-cve-announce/2026062453-CVE-2026-53024-6347@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e806c7fb8e9bae87fc23958c3789f2c2f96f54a4,48d6c32bc049abd114e8f0836c0e7d7cbfba7827)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e806c7fb8e9bae87fc23958c3789f2c2f96f54a4,84265cbd96b97058ef67e3f8be3933667a000835)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,8.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-24T19:45:05.748681+00:00", "updated": "2026-06-28T13:45:06.272594+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}