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CVE-2023-53352— drm/ttm: check null pointer before accessing when swapping

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于未检查空指针，可能导致空指针取消引用。

AI Predicted 4.7 Difficulty: Moderate EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 8996b13051f0c211aaaf243dfd270003f1b67431< d39971d902d067b4dc366981b75b17c8c57ed5d1 affected
da60170558b956c1b45dee1c4423da2425037426< 8089eb93d6787dbf348863e935698b4610d90321 affected
17e188e0feb008bab5f4b083083dff7cdc633ca1< 1fdd16d89c01336d9a942b5f03673c17d401da87 affected
c24d051e6b48015e32f1361cdf67e1784dd14a9f< 49b3b979e79faef129605018ad82aa0f2258f2f7 affected
a2848d08742c8e8494675892c02c0d22acbe3cf8< 2dedcf414bb01b8d966eb445db1d181d92304fb2 affected
5.15.124< 5.15.126 affected
6.1.43< 6.1.45 affected
6.4.8< 6.4.10 affected
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I. Basic Information for CVE-2023-53352

Vulnerability Information
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Vulnerability Title
drm/ttm: check null pointer before accessing when swapping
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/ttm: check null pointer before accessing when swapping Add a check to avoid null pointer dereference as below: [ 90.002283] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 90.002292] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 90.002346] ? exc_general_protection+0x159/0x240 [ 90.002352] ? asm_exc_general_protection+0x26/0x30 [ 90.002357] ? ttm_bo_evict_swapout_allowable+0x322/0x5e0 [ttm] [ 90.002365] ? ttm_bo_evict_swapout_allowable+0x42e/0x5e0 [ttm] [ 90.002373] ttm_bo_swapout+0x134/0x7f0 [ttm] [ 90.002383] ? __pfx_ttm_bo_swapout+0x10/0x10 [ttm] [ 90.002391] ? lock_acquire+0x44d/0x4f0 [ 90.002398] ? ttm_device_swapout+0xa5/0x260 [ttm] [ 90.002412] ? lock_acquired+0x355/0xa00 [ 90.002416] ? do_raw_spin_trylock+0xb6/0x190 [ 90.002421] ? __pfx_lock_acquired+0x10/0x10 [ 90.002426] ? ttm_global_swapout+0x25/0x210 [ttm] [ 90.002442] ttm_device_swapout+0x198/0x260 [ttm] [ 90.002456] ? __pfx_ttm_device_swapout+0x10/0x10 [ttm] [ 90.002472] ttm_global_swapout+0x75/0x210 [ttm] [ 90.002486] ttm_tt_populate+0x187/0x3f0 [ttm] [ 90.002501] ttm_bo_handle_move_mem+0x437/0x590 [ttm] [ 90.002517] ttm_bo_validate+0x275/0x430 [ttm] [ 90.002530] ? __pfx_ttm_bo_validate+0x10/0x10 [ttm] [ 90.002544] ? kasan_save_stack+0x33/0x60 [ 90.002550] ? kasan_set_track+0x25/0x30 [ 90.002554] ? __kasan_kmalloc+0x8f/0xa0 [ 90.002558] ? amdgpu_gtt_mgr_new+0x81/0x420 [amdgpu] [ 90.003023] ? ttm_resource_alloc+0xf6/0x220 [ttm] [ 90.003038] amdgpu_bo_pin_restricted+0x2dd/0x8b0 [amdgpu] [ 90.003210] ? __x64_sys_ioctl+0x131/0x1a0 [ 90.003210] ? do_syscall_64+0x60/0x90
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，该漏洞源于未检查空指针，可能导致空指针取消引用。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 8996b13051f0c211aaaf243dfd270003f1b67431 ~ d39971d902d067b4dc366981b75b17c8c57ed5d1 -
Linux Linux 5.15.124 ~ 5.15.126 -

II. Public POCs for CVE-2023-53352

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III. Intelligence Information for CVE-2023-53352

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Same Patch Batch · Linux · 2025-09-17 · 56 CVEs total

CVE-2023-53338 9.8 CRITICAL lwt: Fix return values of BPF xmit ops
CVE-2022-50373 9.8 CRITICAL fs: dlm: fix race in lowcomms
CVE-2022-50363 9.8 CRITICAL skmsg: pass gfp argument to alloc_sk_msg()
CVE-2023-53360 9.8 CRITICAL NFSv4.2: Rework scratch handling for READ_PLUS (again)
CVE-2023-53358 8.8 HIGH ksmbd: fix racy issue under cocurrent smb2 tree disconnect
CVE-2023-53340 7.8 HIGH net/mlx5: Collect command failures data only for known commands
CVE-2022-50368 7.8 HIGH drm/msm/dsi: fix memory corruption with too many bridges
CVE-2022-50367 7.8 HIGH fs: fix UAF/GPF bug in nilfs_mdt_destroy
CVE-2022-50362 7.8 HIGH dmaengine: hisilicon: Add multi-thread support for a DMA channel
CVE-2023-53354 7.8 HIGH skbuff: skb_segment, Call zero copy functions before using skbuff frags
CVE-2022-50354 7.8 HIGH drm/amdkfd: Fix kfd_process_device_init_vm error handling
CVE-2022-50355 7.8 HIGH staging: vt6655: fix some erroneous memory clean-up loops
CVE-2023-53335 7.5 HIGH RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
CVE-2022-50365 7.5 HIGH skbuff: Account for tail adjustment during pull operations
CVE-2023-53336 media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings
CVE-2022-50369 drm/vkms: Fix null-ptr-deref in vkms_release()
CVE-2022-50372 cifs: Fix memory leak when build ntlmssp negotiate blob failed
CVE-2022-50371 led: qcom-lpg: Fix sleeping in atomic
CVE-2022-50370 i2c: designware: Fix handling of real but unexpected device interrupts
CVE-2022-50374 Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure

Showing top 20 of 56 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53352

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