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CVE-2026-46235— media: saa7164: add ioremap return checks and cleanups

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saa7164驱动未检查ioremap返回值，可能导致空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1001 · Data Obfuscation

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 443c1228d50518f3c550e1fef490a2c9d9246ce7< 23dee5990d2c27ed79567fd61ccfe6876768531a affected
443c1228d50518f3c550e1fef490a2c9d9246ce7< 3ce8f3057c51bb0a66aa3fab0862be74e9f88684 affected
443c1228d50518f3c550e1fef490a2c9d9246ce7< a9b83f46e52cf1239d780920d1a7a3e415f7b5d9 affected
443c1228d50518f3c550e1fef490a2c9d9246ce7< 6047dc542fa404b5c187cc2c7906aaaaec6d11ed affected
443c1228d50518f3c550e1fef490a2c9d9246ce7< 6c22a6d8e4c1507bba504aeebe80476144a373eb affected
443c1228d50518f3c550e1fef490a2c9d9246ce7< d51c60a498e83c9a79884c8e420f97e3885c9583 affected
2.6.32 affected
< 2.6.32 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-46235

Vulnerability Information
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Vulnerability Title
media: saa7164: add ioremap return checks and cleanups
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: saa7164: add ioremap return checks and cleanups Add checks for ioremap return values in saa7164_dev_setup(). If ioremap for BAR0 or BAR2 fails, release the already allocated PCI memory regions, remove the device from the global list, decrement the device count, and return -ENODEV. This prevents potential null pointer dereferences and ensures proper cleanup on memory mapping failures.
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saa7164驱动未检查ioremap返回值，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 443c1228d50518f3c550e1fef490a2c9d9246ce7 ~ 23dee5990d2c27ed79567fd61ccfe6876768531a -
Linux Linux 2.6.32 -

II. Public POCs for CVE-2026-46235

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III. Intelligence Information for CVE-2026-46235

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Patches & Fixes for CVE-2026-46235 (6)

Same Patch Batch · Linux · 2026-05-28 · 135 CVEs total

CVE-2026-46135 9.8 CRITICAL nvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-46137 9.8 CRITICAL mptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-46195 9.8 CRITICAL smb: client: validate dacloffset before building DACL pointers
CVE-2026-46115 9.8 CRITICAL block: add pgmap check to biovec_phys_mergeable
CVE-2026-46155 9.1 CRITICAL smb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-46185 9.1 CRITICAL smb/client: fix out-of-bounds read in symlink_data()
CVE-2026-46119 9.1 CRITICAL libceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-46238 8.8 HIGH batman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-46174 8.8 HIGH x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-46198 8.8 HIGH batman-adv: fix integer overflow on buff_pos
CVE-2026-46125 8.8 HIGH wifi: mac80211: remove station if connection prep fails
CVE-2026-46166 8.8 HIGH wifi: mac80211: use safe list iteration in radar detect work
CVE-2026-46152 8.8 HIGH wifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-46212 8.8 HIGH batman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-46113 8.8 HIGH KVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-46232 8.1 HIGH HID: playstation: Clamp num_touch_reports
CVE-2026-46138 8.1 HIGH Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-46157 7.8 HIGH ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger
CVE-2026-46227 7.8 HIGH sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL
CVE-2026-46215 7.8 HIGH drm: Set old handle to NULL before prime swap in change_handle

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46235

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