{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49513", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.587Z", "datePublished": "2025-02-26T02:13:42.759Z", "dateUpdated": "2025-05-04T08:39:33.221Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:39:33.221Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: governor: Use kobject release() method to free dbs_data\n\nThe struct dbs_data embeds a struct gov_attr_set and\nthe struct gov_attr_set embeds a kobject. Since every kobject must have\na release() method and we can't use kfree() to free it directly,\nso introduce cpufreq_dbs_data_release() to release the dbs_data via\nthe kobject::release() method. This fixes the calltrace like below:\n\n ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x34\n WARNING: CPU: 12 PID: 810 at lib/debugobjects.c:505 debug_print_object+0xb8/0x100\n Modules linked in:\n CPU: 12 PID: 810 Comm: sh Not tainted 5.16.0-next-20220120-yocto-standard+ #536\n Hardware name: Marvell OcteonTX CN96XX board (DT)\n pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : debug_print_object+0xb8/0x100\n lr : debug_print_object+0xb8/0x100\n sp : ffff80001dfcf9a0\n x29: ffff80001dfcf9a0 x28: 0000000000000001 x27: ffff0001464f0000\n x26: 0000000000000000 x25: ffff8000090e3f00 x24: ffff80000af60210\n x23: ffff8000094dfb78 x22: ffff8000090e3f00 x21: ffff0001080b7118\n x20: ffff80000aeb2430 x19: ffff800009e8f5e0 x18: 0000000000000000\n x17: 0000000000000002 x16: 00004d62e58be040 x15: 013590470523aff8\n x14: ffff8000090e1828 x13: 0000000001359047 x12: 00000000f5257d14\n x11: 0000000000040591 x10: 0000000066c1ffea x9 : ffff8000080d15e0\n x8 : ffff80000a1765a8 x7 : 0000000000000000 x6 : 0000000000000001\n x5 : ffff800009e8c000 x4 : ffff800009e8c760 x3 : 0000000000000000\n x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0001474ed040\n Call trace:\n debug_print_object+0xb8/0x100\n __debug_check_no_obj_freed+0x1d0/0x25c\n debug_check_no_obj_freed+0x24/0xa0\n kfree+0x11c/0x440\n cpufreq_dbs_governor_exit+0xa8/0xac\n cpufreq_exit_governor+0x44/0x90\n cpufreq_set_policy+0x29c/0x570\n store_scaling_governor+0x110/0x154\n store+0xb0/0xe0\n sysfs_kf_write+0x58/0x84\n kernfs_fop_write_iter+0x12c/0x1c0\n new_sync_write+0xf0/0x18c\n vfs_write+0x1cc/0x220\n ksys_write+0x74/0x100\n __arm64_sys_write+0x28/0x3c\n invoke_syscall.constprop.0+0x58/0xf0\n do_el0_svc+0x70/0x170\n el0_svc+0x54/0x190\n el0t_64_sync_handler+0xa4/0x130\n el0t_64_sync+0x1a0/0x1a4\n irq event stamp: 189006\n hardirqs last enabled at (189005): [<ffff8000080849d0>] finish_task_switch.isra.0+0xe0/0x2c0\n hardirqs last disabled at (189006): [<ffff8000090667a4>] el1_dbg+0x24/0xa0\n softirqs last enabled at (188966): [<ffff8000080106d0>] __do_softirq+0x4b0/0x6a0\n softirqs last disabled at (188957): [<ffff80000804a618>] __irq_exit_rcu+0x108/0x1a4\n\n[ rjw: Because can be freed by the gov_attr_set_put() in\n cpufreq_dbs_governor_exit() now, it is also necessary to put the\n invocation of the governor ->exit() callback into the new\n cpufreq_dbs_data_release() function. ]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/cpufreq/cpufreq_governor.c", "drivers/cpufreq/cpufreq_governor.h"], "versions": [{"version": "c4435630361d9bebf7154a0c842dc1fb7ae39c99", "lessThan": "a1964688582d26af1328e19b658933659fb54337", "status": "affected", "versionType": "git"}, {"version": "c4435630361d9bebf7154a0c842dc1fb7ae39c99", "lessThan": "1e32083f327184b6226ce320ef30085ce785ea4e", "status": "affected", "versionType": "git"}, {"version": "c4435630361d9bebf7154a0c842dc1fb7ae39c99", "lessThan": "a85ee6401a47ae3fc64ba506cacb3e7873823c65", "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/cpufreq/cpufreq_governor.c", "drivers/cpufreq/cpufreq_governor.h"], "versions": [{"version": "4.6", "status": "affected"}, {"version": "0", "lessThan": "4.6", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.91", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.3", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "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": "4.6", "versionEndExcluding": "5.15.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "5.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a1964688582d26af1328e19b658933659fb54337"}, {"url": "https://git.kernel.org/stable/c/1e32083f327184b6226ce320ef30085ce785ea4e"}, {"url": "https://git.kernel.org/stable/c/a85ee6401a47ae3fc64ba506cacb3e7873823c65"}], "title": "cpufreq: governor: Use kobject release() method to free dbs_data", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: governor: Use kobject release() method to free dbs_data\n\nThe struct dbs_data embeds a struct gov_attr_set and\nthe struct gov_attr_set embeds a kobject. Since every kobject must have\na release() method and we can't use kfree() to free it directly,\nso introduce cpufreq_dbs_data_release() to release the dbs_data via\nthe kobject::release() method. This fixes the calltrace like below:\n\n ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x34\n WARNING: CPU: 12 PID: 810 at lib/debugobjects.c:505 debug_print_object+0xb8/0x100\n Modules linked in:\n CPU: 12 PID: 810 Comm: sh Not tainted 5.16.0-next-20220120-yocto-standard+ #536\n Hardware name: Marvell OcteonTX CN96XX board (DT)\n pstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : debug_print_object+0xb8/0x100\n lr : debug_print_object+0xb8/0x100\n sp : ffff80001dfcf9a0\n x29: ffff80001dfcf9a0 x28: 0000000000000001 x27: ffff0001464f0000\n x26: 0000000000000000 x25: ffff8000090e3f00 x24: ffff80000af60210\n x23: ffff8000094dfb78 x22: ffff8000090e3f00 x21: ffff0001080b7118\n x20: ffff80000aeb2430 x19: ffff800009e8f5e0 x18: 0000000000000000\n x17: 0000000000000002 x16: 00004d62e58be040 x15: 013590470523aff8\n x14: ffff8000090e1828 x13: 0000000001359047 x12: 00000000f5257d14\n x11: 0000000000040591 x10: 0000000066c1ffea x9 : ffff8000080d15e0\n x8 : ffff80000a1765a8 x7 : 0000000000000000 x6 : 0000000000000001\n x5 : ffff800009e8c000 x4 : ffff800009e8c760 x3 : 0000000000000000\n x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0001474ed040\n Call trace:\n debug_print_object+0xb8/0x100\n __debug_check_no_obj_freed+0x1d0/0x25c\n debug_check_no_obj_freed+0x24/0xa0\n kfree+0x11c/0x440\n cpufreq_dbs_governor_exit+0xa8/0xac\n cpufreq_exit_governor+0x44/0x90\n cpufreq_set_policy+0x29c/0x570\n store_scaling_governor+0x110/0x154\n store+0xb0/0xe0\n sysfs_kf_write+0x58/0x84\n kernfs_fop_write_iter+0x12c/0x1c0\n new_sync_write+0xf0/0x18c\n vfs_write+0x1cc/0x220\n ksys_write+0x74/0x100\n __arm64_sys_write+0x28/0x3c\n invoke_syscall.constprop.0+0x58/0xf0\n do_el0_svc+0x70/0x170\n el0_svc+0x54/0x190\n el0t_64_sync_handler+0xa4/0x130\n el0t_64_sync+0x1a0/0x1a4\n irq event stamp: 189006\n hardirqs last enabled at (189005): [<ffff8000080849d0>] finish_task_switch.isra.0+0xe0/0x2c0\n hardirqs last disabled at (189006): [<ffff8000090667a4>] el1_dbg+0x24/0xa0\n softirqs last enabled at (188966): [<ffff8000080106d0>] __do_softirq+0x4b0/0x6a0\n softirqs last disabled at (188957): [<ffff80000804a618>] __irq_exit_rcu+0x108/0x1a4\n\n[ rjw: Because can be freed by the gov_attr_set_put() in\n cpufreq_dbs_governor_exit() now, it is also necessary to put the\n invocation of the governor ->exit() callback into the new\n cpufreq_dbs_data_release() function. ]"}], "id": "CVE-2022-49513", "lastModified": "2025-02-26T07:01:27.380", "metrics": {}, "published": "2025-02-26T07:01:27.380", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1e32083f327184b6226ce320ef30085ce785ea4e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a1964688582d26af1328e19b658933659fb54337"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a85ee6401a47ae3fc64ba506cacb3e7873823c65"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"affected_release": [{"advisory": "RHSA-2023:2951", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-477.10.1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-05-16T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}, {"advisory": "RHSA-2023:2458", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-284.11.1.el9_2", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-05-09T00:00:00Z"}], "bugzilla": {"description": "kernel: cpufreq: governor: Use kobject release() method to free dbs_data", "id": "2348128", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348128"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ncpufreq: governor: Use kobject release() method to free dbs_data\nThe struct dbs_data embeds a struct gov_attr_set and\nthe struct gov_attr_set embeds a kobject. Since every kobject must have\na release() method and we can't use kfree() to free it directly,\nso introduce cpufreq_dbs_data_release() to release the dbs_data via\nthe kobject::release() method. This fixes the calltrace like below:\nODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x34\nWARNING: CPU: 12 PID: 810 at lib/debugobjects.c:505 debug_print_object+0xb8/0x100\nModules linked in:\nCPU: 12 PID: 810 Comm: sh Not tainted 5.16.0-next-20220120-yocto-standard+ #536\nHardware name: Marvell OcteonTX CN96XX board (DT)\npstate: 60400009 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : debug_print_object+0xb8/0x100\nlr : debug_print_object+0xb8/0x100\nsp : ffff80001dfcf9a0\nx29: ffff80001dfcf9a0 x28: 0000000000000001 x27: ffff0001464f0000\nx26: 0000000000000000 x25: ffff8000090e3f00 x24: ffff80000af60210\nx23: ffff8000094dfb78 x22: ffff8000090e3f00 x21: ffff0001080b7118\nx20: ffff80000aeb2430 x19: ffff800009e8f5e0 x18: 0000000000000000\nx17: 0000000000000002 x16: 00004d62e58be040 x15: 013590470523aff8\nx14: ffff8000090e1828 x13: 0000000001359047 x12: 00000000f5257d14\nx11: 0000000000040591 x10: 0000000066c1ffea x9 : ffff8000080d15e0\nx8 : ffff80000a1765a8 x7 : 0000000000000000 x6 : 0000000000000001\nx5 : ffff800009e8c000 x4 : ffff800009e8c760 x3 : 0000000000000000\nx2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0001474ed040\nCall trace:\ndebug_print_object+0xb8/0x100\n__debug_check_no_obj_freed+0x1d0/0x25c\ndebug_check_no_obj_freed+0x24/0xa0\nkfree+0x11c/0x440\ncpufreq_dbs_governor_exit+0xa8/0xac\ncpufreq_exit_governor+0x44/0x90\ncpufreq_set_policy+0x29c/0x570\nstore_scaling_governor+0x110/0x154\nstore+0xb0/0xe0\nsysfs_kf_write+0x58/0x84\nkernfs_fop_write_iter+0x12c/0x1c0\nnew_sync_write+0xf0/0x18c\nvfs_write+0x1cc/0x220\nksys_write+0x74/0x100\n__arm64_sys_write+0x28/0x3c\ninvoke_syscall.constprop.0+0x58/0xf0\ndo_el0_svc+0x70/0x170\nel0_svc+0x54/0x190\nel0t_64_sync_handler+0xa4/0x130\nel0t_64_sync+0x1a0/0x1a4\nirq event stamp: 189006\nhardirqs last enabled at (189005): [<ffff8000080849d0>] finish_task_switch.isra.0+0xe0/0x2c0\nhardirqs last disabled at (189006): [<ffff8000090667a4>] el1_dbg+0x24/0xa0\nsoftirqs last enabled at (188966): [<ffff8000080106d0>] __do_softirq+0x4b0/0x6a0\nsoftirqs last disabled at (188957): [<ffff80000804a618>] __irq_exit_rcu+0x108/0x1a4\n[ rjw: Because can be freed by the gov_attr_set_put() in\ncpufreq_dbs_governor_exit() now, it is also necessary to put the\ninvocation of the governor ->exit() callback into the new\ncpufreq_dbs_data_release() function. ]", "A vulnerability was found in the Linux kernel's cpufreq subsystem. The `dbs_data` struct, which embeds a `kobject`, improperly attempts to free the struct using `kfree()` rather than through the proper `release()` method. This issue can lead to a use-after-free scenario, resulting in system instability, memory corruption, or potential arbitrary code execution."], "name": "CVE-2022-49513", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49513\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49513\nhttps://lore.kernel.org/linux-cve-announce/2025022609-CVE-2022-49513-f147@gregkh/T"], "threat_severity": "Moderate"}