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CVE-2023-53235— drm/tests: helpers: Avoid a driver uaf

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.16% · P6

Affected Version Matrix 6

VendorProductVersion RangeStatus
LinuxLinuxd98780310719bf4076d975c2ff65c44c7c0d929e< c9d8be0e533738b744abb669263c4750d4830009affected
d98780310719bf4076d975c2ff65c44c7c0d929e< 139a27854bf5ce93ff9805f9f7683b88c13074dcaffected
6.3affected
< 6.3unaffected
6.5.5≤ 6.5.*unaffected
6.6≤ *unaffected
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I. Basic Information for CVE-2023-53235

Vulnerability Information
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Vulnerability Title
drm/tests: helpers: Avoid a driver uaf
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/tests: helpers: Avoid a driver uaf when using __drm_kunit_helper_alloc_drm_device() the driver may be dereferenced by device-managed resources up until the device is freed, which is typically later than the kunit-managed resource code frees it. Fix this by simply make the driver device-managed as well. In short, the sequence leading to the UAF is as follows: INIT: Code allocates a struct device as a kunit-managed resource. Code allocates a drm driver as a kunit-managed resource. Code allocates a drm device as a device-managed resource. EXIT: Kunit resource cleanup frees the drm driver Kunit resource cleanup puts the struct device, which starts a device-managed resource cleanup device-managed cleanup calls drm_dev_put() drm_dev_put() dereferences the (now freed) drm driver -> Boom. Related KASAN message: [55272.551542] ================================================================== [55272.551551] BUG: KASAN: slab-use-after-free in drm_dev_put.part.0+0xd4/0xe0 [drm] [55272.551603] Read of size 8 at addr ffff888127502828 by task kunit_try_catch/10353 [55272.551612] CPU: 4 PID: 10353 Comm: kunit_try_catch Tainted: G U N 6.5.0-rc7+ #155 [55272.551620] Hardware name: ASUS System Product Name/PRIME B560M-A AC, BIOS 0403 01/26/2021 [55272.551626] Call Trace: [55272.551629] <TASK> [55272.551633] dump_stack_lvl+0x57/0x90 [55272.551639] print_report+0xcf/0x630 [55272.551645] ? _raw_spin_lock_irqsave+0x5f/0x70 [55272.551652] ? drm_dev_put.part.0+0xd4/0xe0 [drm] [55272.551694] kasan_report+0xd7/0x110 [55272.551699] ? drm_dev_put.part.0+0xd4/0xe0 [drm] [55272.551742] drm_dev_put.part.0+0xd4/0xe0 [drm] [55272.551783] devres_release_all+0x15d/0x1f0 [55272.551790] ? __pfx_devres_release_all+0x10/0x10 [55272.551797] device_unbind_cleanup+0x16/0x1a0 [55272.551802] device_release_driver_internal+0x3e5/0x540 [55272.551808] ? kobject_put+0x5d/0x4b0 [55272.551814] bus_remove_device+0x1f1/0x3f0 [55272.551819] device_del+0x342/0x910 [55272.551826] ? __pfx_device_del+0x10/0x10 [55272.551830] ? lock_release+0x339/0x5e0 [55272.551836] ? kunit_remove_resource+0x128/0x290 [kunit] [55272.551845] ? __pfx_lock_release+0x10/0x10 [55272.551851] platform_device_del.part.0+0x1f/0x1e0 [55272.551856] ? _raw_spin_unlock_irqrestore+0x30/0x60 [55272.551863] kunit_remove_resource+0x195/0x290 [kunit] [55272.551871] ? _raw_spin_unlock_irqrestore+0x30/0x60 [55272.551877] kunit_cleanup+0x78/0x120 [kunit] [55272.551885] ? __kthread_parkme+0xc1/0x1f0 [55272.551891] ? __pfx_kunit_try_run_case_cleanup+0x10/0x10 [kunit] [55272.551900] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [kunit] [55272.551909] kunit_generic_run_threadfn_adapter+0x4a/0x90 [kunit] [55272.551919] kthread+0x2e7/0x3c0 [55272.551924] ? __pfx_kthread+0x10/0x10 [55272.551929] ret_from_fork+0x2d/0x70 [55272.551935] ? __pfx_kthread+0x10/0x10 [55272.551940] ret_from_fork_asm+0x1b/0x30 [55272.551948] </TASK> [55272.551953] Allocated by task 10351: [55272.551956] kasan_save_stack+0x1c/0x40 [55272.551962] kasan_set_track+0x21/0x30 [55272.551966] __kasan_kmalloc+0x8b/0x90 [55272.551970] __kmalloc+0x5e/0x160 [55272.551976] kunit_kmalloc_array+0x1c/0x50 [kunit] [55272.551984] drm_exec_test_init+0xfa/0x2c0 [drm_exec_test] [55272.551991] kunit_try_run_case+0xdd/0x250 [kunit] [55272.551999] kunit_generic_run_threadfn_adapter+0x4a/0x90 [kunit] [55272.552008] kthread+0x2e7/0x3c0 [55272.552012] ret_from_fork+0x2d/0x70 [55272.552017] ret_from_fork_asm+0x1b/0x30 [55272.552024] Freed by task 10353: [55272.552027] kasan_save_stack+0x1c/0x40 [55272.552032] kasan_set_track+0x21/0x30 [55272.552036] kasan_save_free_info+0x27/0x40 [55272.552041] __kasan_slab_free+0x106/0x180 [55272.552046] slab_free_freelist_hook+0xb3/0x160 [55272.552051] __kmem_cache_free+0xb2/0x290 [55272.552056] kunit_remove_resource+0x195/0x290 [kunit] [55272.552064] kunit_cleanup+0x7 ---truncated---
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于设备管理资源在释放后仍可能引用驱动程序，可能导致释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux d98780310719bf4076d975c2ff65c44c7c0d929e ~ c9d8be0e533738b744abb669263c4750d4830009 -
LinuxLinux 6.3 -

II. Public POCs for CVE-2023-53235

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III. Intelligence Information for CVE-2023-53235

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Same Patch Batch · Linux · 2025-09-15 · 210 CVEs total

CVE-2022-502359.8 CRITICALNFSD: Protect against send buffer overflow in NFSv2 READDIR
CVE-2022-503359.8 CRITICAL9p: set req refcount to zero to avoid uninitialized usage
CVE-2023-531929.8 CRITICALvxlan: Fix nexthop hash size
CVE-2023-532538.8 HIGHHID: nvidia-shield: Reference hid_device devm allocation of input_dev name
CVE-2023-532268.8 HIGHwifi: mwifiex: Fix OOB and integer underflow when rx packets
CVE-2022-502418.8 HIGHNFSD: fix use-after-free on source server when doing inter-server copy
CVE-2023-531948.4 HIGHfs/ntfs3: Add length check in indx_get_root
CVE-2023-532138.1 HIGHwifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies()
CVE-2023-531868.1 HIGHskbuff: Fix a race between coalescing and releasing SKBs
CVE-2022-503107.8 HIGHip6mr: fix UAF issue in ip6mr_sk_done() when addrconf_init_net() failed
CVE-2023-532547.8 HIGHcacheinfo: Fix shared_cpu_map to handle shared caches at different levels
CVE-2023-532527.8 HIGHBluetooth: use RCU for hci_conn_params and iterate safely in hci_sync
CVE-2023-531707.8 HIGHnet: dsa: Removed unneeded of_node_put in felix_parse_ports_node
CVE-2023-531767.8 HIGHserial: 8250: Reinit port->pm on port specific driver unbind
CVE-2023-531787.8 HIGHmm: fix zswap writeback race condition
CVE-2023-531797.8 HIGHnetfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c
CVE-2023-531847.8 HIGHarm64/sme: Set new vector length before reallocating
CVE-2022-503157.8 HIGHata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS
CVE-2023-531877.8 HIGHbtrfs: fix use-after-free of new block group that became unused
CVE-2025-398007.8 HIGHbtrfs: abort transaction on unexpected eb generation at btrfs_copy_root()

Showing top 20 of 210 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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