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CVE-2025-37819— irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode()

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，该漏洞源于函数标记错误，可能导致释放后重用。

AI Predicted 4.4 Difficulty: Easy EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 0644b3daca28dcb320373ae20069c269c9386304< 0c241dedc43a036599757cd08f356253fa3e5014 affected
0644b3daca28dcb320373ae20069c269c9386304< b63de43af8d215b0499eac28b2caa4439183efc1 affected
0644b3daca28dcb320373ae20069c269c9386304< f95659affee301464f0d058d528d96b35b452da8 affected
0644b3daca28dcb320373ae20069c269c9386304< dc0d654eb4179b06d3206e4396d072108b9ba082 affected
0644b3daca28dcb320373ae20069c269c9386304< 2f2803e4b5e4df2b08d378deaab78b1681ef9b30 affected
0644b3daca28dcb320373ae20069c269c9386304< 3939d6f29d34cdb60e3f68b76e39e00a964a1d51 affected
0644b3daca28dcb320373ae20069c269c9386304< 47bee0081b483b077c7560bc5358ad101f89c8ef affected
0644b3daca28dcb320373ae20069c269c9386304< 3318dc299b072a0511d6dfd8367f3304fb6d9827 affected
… +10 more rows
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I. Basic Information for CVE-2025-37819

Vulnerability Information
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Vulnerability Title
irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() With ACPI in place, gicv2m_get_fwnode() is registered with the pci subsystem as pci_msi_get_fwnode_cb(), which may get invoked at runtime during a PCI host bridge probe. But, the call back is wrongly marked as __init, causing it to be freed, while being registered with the PCI subsystem and could trigger: Unable to handle kernel paging request at virtual address ffff8000816c0400 gicv2m_get_fwnode+0x0/0x58 (P) pci_set_bus_msi_domain+0x74/0x88 pci_register_host_bridge+0x194/0x548 This is easily reproducible on a Juno board with ACPI boot. Retain the function for later use.
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，该漏洞源于函数标记错误，可能导致释放后重用。
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 0644b3daca28dcb320373ae20069c269c9386304 ~ 0c241dedc43a036599757cd08f356253fa3e5014 -
Linux Linux 4.5 -

II. Public POCs for CVE-2025-37819

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III. Intelligence Information for CVE-2025-37819

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Same Patch Batch · Linux · 2025-05-08 · 33 CVEs total

CVE-2025-37801 7.8 HIGH spi: spi-imx: Add check for spi_imx_setupxfer()
CVE-2025-37822 7.8 HIGH riscv: uprobes: Add missing fence.i after building the XOL buffer
CVE-2025-37823 7.8 HIGH net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too
CVE-2025-37814 7.8 HIGH tty: Require CAP_SYS_ADMIN for all usages of TIOCL_SELMOUSEREPORT
CVE-2025-37813 7.8 HIGH usb: xhci: Fix invalid pointer dereference in Etron workaround
CVE-2025-37820 7.5 HIGH xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()
CVE-2025-37802 7.5 HIGH ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"
CVE-2025-37800 7.1 HIGH driver core: fix potential NULL pointer dereference in dev_uevent()
CVE-2025-37830 cpufreq: scmi: Fix null-ptr-deref in scmi_cpufreq_get_rate()
CVE-2025-37829 cpufreq: scpi: Fix null-ptr-deref in scpi_cpufreq_get_rate()
CVE-2025-37828 scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()
CVE-2025-37826 scsi: ufs: core: Add NULL check in ufshcd_mcq_compl_pending_transfer()
CVE-2025-37827 btrfs: zoned: return EIO on RAID1 block group write pointer mismatch
CVE-2025-37825 nvmet: fix out-of-bounds access in nvmet_enable_port
CVE-2025-37831 cpufreq: apple-soc: Fix null-ptr-deref in apple_soc_cpufreq_get_rate()
CVE-2025-37834 mm/vmscan: don't try to reclaim hwpoison folio
CVE-2025-37824 tipc: fix NULL pointer dereference in tipc_mon_reinit_self()
CVE-2025-37821 sched/eevdf: Fix se->slice being set to U64_MAX and resulting crash
CVE-2025-37833 net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads
CVE-2025-37817 mcb: fix a double free bug in chameleon_parse_gdd()

Showing top 20 of 33 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-37819

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