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CVE-2026-90034— usb: image: mdc800: change kmalloc() to kzalloc()

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.

在 Linux 内核中，已修复以下漏洞： usb: image: mdc800: 将 kmalloc() 改为 kzalloc() 将 usb_mdc800_init() 中针对 irq_urb_buffer 和 download_urb_buffer 的 kmalloc() 调用更改为 kzalloc()，以避免在 mdc800_usb_irq() 和 mdc800_usb_download_notify() 中接收到较短消息时可能发生的栈内存泄露。

AI Predicted 6.4 Difficulty: Moderate EPSS 0.20% · P9

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 6c601410d1a9ae645f604fe2f61b9f4942c77dfb affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2df8f7720ed91f1aad4f128553b6e90c7c5fac1e affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 553c375e86a49882e95840565512e17bff31cc3a affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 8c38049879f2108f57c98f03cc7f3db51a12bdab affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 838455cc8bfe1278150d1d776529edea6cd4c1dd affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e22428f0c038c23109c0383a235aa607b0cd4c95 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 2430eb81e44111b30eeb5273bbcf8b24ca517ef9 affected
… +10 more rows
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I. Basic Information for CVE-2026-90034

Vulnerability Information
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Vulnerability Title
usb: image: mdc800: change kmalloc() to kzalloc()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: image: mdc800: change kmalloc() to kzalloc() Change the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and download_urb_buffer to kzalloc(), avoiding potential stack leaks if a shorter message is received in mdc800_usb_irq() and mdc800_usb_download_notify()
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 6c601410d1a9ae645f604fe2f61b9f4942c77dfb -
Linux Linux 2.6.12 -

II. Public POCs for CVE-2026-90034

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III. Intelligence Information for CVE-2026-90034

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Other References for CVE-2026-90034 (8)

Same Patch Batch · Linux · 2026-09-16 · 276 CVEs total

CVE-2026-90048 9.8 CRITICAL fs/ntfs3: fix slab-out-of-bounds write in ni_create_attr_list()
CVE-2026-90012 9.8 CRITICAL spi: Fix DMA mapping ownership on partial map failure
CVE-2026-89970 9.8 CRITICAL nvmet-auth: Synchronize timeout work during SQ teardown
CVE-2026-89857 9.8 CRITICAL scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject
CVE-2026-89969 9.8 CRITICAL nvmet-tcp: fix out-of-bounds write when receiving an over-long PDU
CVE-2026-89847 9.8 CRITICAL scsi: qla2xxx: Avoid double completion in async IOCB timeout
CVE-2026-89972 9.8 CRITICAL nvme: add missing SRCU grace period in error path
CVE-2026-89990 9.8 CRITICAL ceph: lock mutex in ceph_mds_check_access()
CVE-2026-90036 9.8 CRITICAL NFSD: Prevent client use-after-free during blocked-lock reaping
CVE-2026-90038 9.8 CRITICAL NFSD: Prevent client use-after-free during export state revocation
CVE-2026-90037 9.8 CRITICAL NFSD: Prevent client use-after-free during close_lru reaping
CVE-2026-89788 9.8 CRITICAL ksmbd: fix tree connection use-after-free in smb2_tree_connect()
CVE-2026-89783 9.8 CRITICAL xfrm6: fix out-of-bounds write in xfrm6_input_addr() when secpath is full
CVE-2026-90042 9.8 CRITICAL ceph: properly decrypt filenames in vmalloc() buffers
CVE-2026-89778 9.8 CRITICAL isofs: fix out-of-bounds page array access on empty zisofs block
CVE-2026-89916 9.3 CRITICAL KVM: arm64: Make VNCR invalidation participate in MMU invalidation retry
CVE-2026-89915 9.3 CRITICAL KVM: arm64: Remove VM-wide VNCR mapping counter
CVE-2026-90049 9.3 CRITICAL net: skbuff: don't skb_tx_error() the source skb in skb_zerocopy()
CVE-2026-89775 9.3 CRITICAL KVM: arm64: Handle negative S1 walk levels in VNCR TLB size evaluation
CVE-2026-89918 9.3 CRITICAL KVM: arm64: Correctly handle end of VA space TLBI invalidation

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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