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CVE-2026-23037— can: etas_es58x: allow partial RX URB allocation to succeed

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，该漏洞源于部分URB分配失败时未正确处理，可能导致内存泄漏。

AI Predicted 3.3 Difficulty: Moderate EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1562.001

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 8537257874e949a59c834cecfd5a063e11b64b0b< 97250eb05e4b6afe787290e8fd97d0675116c61b affected
8537257874e949a59c834cecfd5a063e11b64b0b< aec888f44853584b5a7cd01249806030cf94a73d affected
8537257874e949a59c834cecfd5a063e11b64b0b< 611e839d2d552416b498ed5593e10670f61fcd4d affected
8537257874e949a59c834cecfd5a063e11b64b0b< ba45e3d6b02c97dbb4578fbae7027fd66f3caa10 affected
8537257874e949a59c834cecfd5a063e11b64b0b< 6c5124a60989051799037834f0a1a4b428718157 affected
8537257874e949a59c834cecfd5a063e11b64b0b< b1979778e98569c1e78c2c7f16bb24d76541ab00 affected
5.13 affected
< 5.13 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-23037

Vulnerability Information
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Vulnerability Title
can: etas_es58x: allow partial RX URB allocation to succeed
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: allow partial RX URB allocation to succeed When es58x_alloc_rx_urbs() fails to allocate the requested number of URBs but succeeds in allocating some, it returns an error code. This causes es58x_open() to return early, skipping the cleanup label 'free_urbs', which leads to the anchored URBs being leaked. As pointed out by maintainer Vincent Mailhol, the driver is designed to handle partial URB allocation gracefully. Therefore, partial allocation should not be treated as a fatal error. Modify es58x_alloc_rx_urbs() to return 0 if at least one URB has been allocated, restoring the intended behavior and preventing the leak in es58x_open().
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，该漏洞源于部分URB分配失败时未正确处理，可能导致内存泄漏。
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 8537257874e949a59c834cecfd5a063e11b64b0b ~ 97250eb05e4b6afe787290e8fd97d0675116c61b -
Linux Linux 5.13 -

II. Public POCs for CVE-2026-23037

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III. Intelligence Information for CVE-2026-23037

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Same Patch Batch · Linux · 2026-01-31 · 37 CVEs total

CVE-2025-71183 9.1 CRITICAL btrfs: always detect conflicting inodes when logging inode refs
CVE-2026-23018 btrfs: release path before initializing extent tree in btrfs_read_locked_inode()
CVE-2025-71186 dmaengine: stm32: dmamux: fix device leak on route allocation
CVE-2025-71185 dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation
CVE-2026-23024 idpf: fix memory leak of flow steer list on rmmod
CVE-2026-23023 idpf: fix memory leak in idpf_vport_rel()
CVE-2026-23022 idpf: fix memory leak in idpf_vc_core_deinit()
CVE-2026-23021 net: usb: pegasus: fix memory leak in update_eth_regs_async()
CVE-2026-23020 net: 3com: 3c59x: fix possible null dereference in vortex_probe1()
CVE-2026-23019 net: marvell: prestera: fix NULL dereference on devlink_alloc() failure
CVE-2025-71187 dmaengine: sh: rz-dmac: fix device leak on probe failure
CVE-2026-23017 idpf: fix error handling in the init_task on load
CVE-2026-23016 inet: frags: drop fraglist conntrack references
CVE-2026-23015 gpio: mpsse: fix reference leak in gpio_mpsse_probe() error paths
CVE-2025-71184 btrfs: fix NULL dereference on root when tracing inode eviction
CVE-2025-71182 can: j1939: make j1939_session_activate() fail if device is no longer registered
CVE-2025-71181 rust_binder: remove spin_lock() in rust_shrink_free_page()
CVE-2025-71180 counter: interrupt-cnt: Drop IRQF_NO_THREAD flag
CVE-2026-23029 LoongArch: KVM: Fix kvm_device leak in kvm_eiointc_destroy()
CVE-2026-23039 drm/gud: fix NULL fb and crtc dereferences on USB disconnect

Showing top 20 of 37 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23037

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