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CVE-2026-43370— drm/amdgpu: Fix use-after-free race in VM acquire

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VM获取中存在释放后重用竞争，可能导致进程间共享drm_file时发生竞争。

CVSS 7.8 · High EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< ae87aea330c24f462fc7058ed543ba8bc6798447 affected
ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< 46d309996bd9251792d7dafdbaf615cf202b4447 affected
ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< e61e355cbe49e585097eee28c15b862bfb1c0668 affected
ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< c658c1c85ec235b7ecfbf8dbfee385b1332088f4 affected
ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< 904025fa8bba1d028adade33346372b4ac1a9249 affected
ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< 7885eb335d8f9e9942925d57e300a85e3f82ded4 affected
ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< 94b7782d0c8024f5b88454241c8d4777076c3786 affected
ede0dd86f45adf2b7083bb161f6bc81da5fe2bad< 2c1030f2e84885cc58bffef6af67d5b9d2e7098f affected
… +10 more rows
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I. Basic Information for CVE-2026-43370

Vulnerability Information
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Vulnerability Title
drm/amdgpu: Fix use-after-free race in VM acquire
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix use-after-free race in VM acquire Replace non-atomic vm->process_info assignment with cmpxchg() to prevent race when parent/child processes sharing a drm_file both try to acquire the same VM after fork(). (cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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VM获取中存在释放后重用竞争，可能导致进程间共享drm_file时发生竞争。
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 ede0dd86f45adf2b7083bb161f6bc81da5fe2bad ~ ae87aea330c24f462fc7058ed543ba8bc6798447 -
Linux Linux 4.17 -

II. Public POCs for CVE-2026-43370

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III. Intelligence Information for CVE-2026-43370

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Patches & Fixes for CVE-2026-43370 (8)

Same Patch Batch · Linux · 2026-05-08 · 197 CVEs total

CVE-2026-43414 9.8 CRITICAL scsi: qla2xxx: Completely fix fcport double free
CVE-2026-43341 9.8 CRITICAL net/ipv6: ioam6: prevent schema length wraparound in trace fill
CVE-2026-43402 9.8 CRITICAL kthread: consolidate kthread exit paths to prevent use-after-free
CVE-2026-43304 9.8 CRITICAL libceph: define and enforce CEPH_MAX_KEY_LEN
CVE-2026-43384 9.8 CRITICAL net/tcp-ao: Fix MAC comparison to be constant-time
CVE-2026-43376 9.8 CRITICAL ksmbd: fix use-after-free by using call_rcu() for oplock_info
CVE-2026-43378 9.8 CRITICAL smb: server: fix use-after-free in smb2_open()
CVE-2026-43465 9.8 CRITICAL net/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ
CVE-2026-43379 9.8 CRITICAL ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()
CVE-2026-43383 9.4 CRITICAL net/tcp-md5: Fix MAC comparison to be constant-time
CVE-2026-43406 9.1 CRITICAL libceph: prevent potential out-of-bounds reads in process_message_header()
CVE-2026-43407 9.1 CRITICAL libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()
CVE-2026-43284 8.8 HIGH xfrm: esp: avoid in-place decrypt on shared skb frags
CVE-2026-43322 8.8 HIGH Bluetooth: hci_sync: Fix UAF in le_read_features_complete
CVE-2026-43334 8.8 HIGH Bluetooth: SMP: force responder MITM requirements before building the pairing response
CVE-2026-43403 8.8 HIGH nsfs: tighten permission checks for ns iteration ioctls
CVE-2026-43391 8.8 HIGH nsfs: tighten permission checks for handle opening
CVE-2026-43291 8.3 HIGH net: nfc: nci: Fix parameter validation for packet data
CVE-2026-43365 8.2 HIGH xfs: fix undersized l_iclog_roundoff values
CVE-2026-43452 8.2 HIGH netfilter: x_tables: guard option walkers against 1-byte tail reads

Showing top 20 of 197 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43370

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