cve-2024-56554
Vulnerability from cvelistv5
Published
2024-12-27 14:22
Modified
2025-02-10 17:21
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: binder: fix freeze UAF in binder_release_work() When a binder reference is cleaned up, any freeze work queued in the associated process should also be removed. Otherwise, the reference is freed while its ref->freeze.work is still queued in proc->work leading to a use-after-free issue as shown by the following KASAN report: ================================================================== BUG: KASAN: slab-use-after-free in binder_release_work+0x398/0x3d0 Read of size 8 at addr ffff31600ee91488 by task kworker/5:1/211 CPU: 5 UID: 0 PID: 211 Comm: kworker/5:1 Not tainted 6.11.0-rc7-00382-gfc6c92196396 #22 Hardware name: linux,dummy-virt (DT) Workqueue: events binder_deferred_func Call trace: binder_release_work+0x398/0x3d0 binder_deferred_func+0xb60/0x109c process_one_work+0x51c/0xbd4 worker_thread+0x608/0xee8 Allocated by task 703: __kmalloc_cache_noprof+0x130/0x280 binder_thread_write+0xdb4/0x42a0 binder_ioctl+0x18f0/0x25ac __arm64_sys_ioctl+0x124/0x190 invoke_syscall+0x6c/0x254 Freed by task 211: kfree+0xc4/0x230 binder_deferred_func+0xae8/0x109c process_one_work+0x51c/0xbd4 worker_thread+0x608/0xee8 ================================================================== This commit fixes the issue by ensuring any queued freeze work is removed when cleaning up a binder reference.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7e20434cbca814cb91a0a261ca0106815ef48e5fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe39e0ea2d0ba7f508ff453c4c9a44a95ec0de29Patch
Impacted products
Vendor Product Version
Linux Linux Version: d579b04a52a183db47dfcb7a44304d7747d551e1
Version: d579b04a52a183db47dfcb7a44304d7747d551e1
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   Linux Linux Version: 6.12
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Otherwise, the reference is\\nfreed while its ref-\u003efreeze.work is still queued in proc-\u003ework leading\\nto a use-after-free issue as shown by the following KASAN report:\\n\\n  ==================================================================\\n  BUG: KASAN: slab-use-after-free in binder_release_work+0x398/0x3d0\\n  Read of size 8 at addr ffff31600ee91488 by task kworker/5:1/211\\n\\n  CPU: 5 UID: 0 PID: 211 Comm: kworker/5:1 Not tainted 6.11.0-rc7-00382-gfc6c92196396 #22\\n  Hardware name: linux,dummy-virt (DT)\\n  Workqueue: events binder_deferred_func\\n  Call trace:\\n   binder_release_work+0x398/0x3d0\\n   binder_deferred_func+0xb60/0x109c\\n   process_one_work+0x51c/0xbd4\\n   worker_thread+0x608/0xee8\\n\\n  Allocated by task 703:\\n   __kmalloc_cache_noprof+0x130/0x280\\n   binder_thread_write+0xdb4/0x42a0\\n   binder_ioctl+0x18f0/0x25ac\\n   __arm64_sys_ioctl+0x124/0x190\\n   invoke_syscall+0x6c/0x254\\n\\n  Freed by task 211:\\n   kfree+0xc4/0x230\\n   binder_deferred_func+0xae8/0x109c\\n   process_one_work+0x51c/0xbd4\\n   worker_thread+0x608/0xee8\\n  ==================================================================\\n\\nThis commit fixes the issue by ensuring any queued freeze work is removed\\nwhen cleaning up a binder reference.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: binder: correcci\u00f3n del UAF congelado en binder_release_work() Cuando se limpia una referencia de binder, cualquier trabajo congelado en cola en el proceso asociado tambi\u00e9n debe eliminarse. De lo contrario, la referencia se libera mientras su ref-\u0026gt;freeze.work todav\u00eda est\u00e1 en cola en proc-\u0026gt;work, lo que genera un problema de use-after-free, como lo muestra el siguiente informe de KASAN: ====================================================================== ERROR: KASAN: slab-use-after-free en binder_release_work+0x398/0x3d0 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff31600ee91488 por la tarea kworker/5:1/211 CPU: 5 UID: 0 PID: 211 Comm: kworker/5:1 No contaminado 6.11.0-rc7-00382-gfc6c92196396 #22 Hardware nombre: linux,dummy-virt (DT) Cola de trabajo: eventos binder_deferred_func Rastreo de llamadas: binder_release_work+0x398/0x3d0 binder_deferred_func+0xb60/0x109c process_one_work+0x51c/0xbd4 worker_thread+0x608/0xee8 Asignado por la tarea 703: __kmalloc_cache_noprof+0x130/0x280 binder_thread_write+0xdb4/0x42a0 binder_ioctl+0x18f0/0x25ac __arm64_sys_ioctl+0x124/0x190 activate_syscall+0x6c/0x254 Liberado por la tarea 211: kfree+0xc4/0x230 binder_deferred_func+0xae8/0x109c process_one_work+0x51c/0xbd4 worker_thread+0x608/0xee8 ======================================================================= Este commit corrige el problema al garantizar que cualquier trabajo de congelamiento en cola se elimine al limpiar una referencia de binder.\"}],\"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:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"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\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12\",\"versionEndExcluding\":\"6.12.4\",\"matchCriteriaId\":\"938626A1-5477-4679-A5E2-2AADE66DEDCA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7e20434cbca814cb91a0a261ca0106815ef48e5f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fe39e0ea2d0ba7f508ff453c4c9a44a95ec0de29\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
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