FKIE_CVE-2026-99188
Vulnerability from fkie_nvd - Published: 2026-10-28 11:17 - Updated: 2026-10-28 11:17| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "affc6d572935282ef9ab1e0b790cbc31e5ad8bca",
"status": "affected",
"version": "2e2c878a314175a4c3b76ee3be455f543438f472",
"versionType": "git"
},
{
"lessThan": "aa07285705f8d5bac464eb1c5b7412f8e88b91e1",
"status": "affected",
"version": "2e2c878a314175a4c3b76ee3be455f543438f472",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.19"
},
{
"lessThan": "6.19",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: dwmac1000: clear the RGMII status interrupt\n\nSince commit 2e2c878a3141 (\"net: stmmac: remove SGMII/RGMII/SMII\ninterrupt handling\") nothing on the RGMII path reads GMAC_RGSMIIIS, so\nRGSMIIIS stays pending behind GMAC_INT_MASK from the first link change\non. stmmac_resume() resets the MAC in stmmac_hw_setup(); the reset sets\nGMAC_INT_MASK to 0 until dwmac1000_core_init() writes the mask again,\nand the pending status storms the line:\n\n dwmac_dma_interrupt: unexpected status 04000000\n\nA register dump at the first message on ODROID-HC4 showed it:\n\n core int_status 00000001 int_mask 00000000 pmt 00000000 rgsmiiis 0000000d\n\nWhen the resume thread runs on the CPU that takes the MAC interrupt,\nthe storm starves it: a soft lockup, then a watchdog reset or a hang.\n\nRead GMAC_RGSMIIIS in dwmac1000_irq_status() when the status is not\nmasked, as the driver did before 2e2c878a3141; the read clears it.\n\nWake-on-LAN resume from s2idle with the resume thread and the MAC\ninterrupt on one CPU: Helios64 (dwmac-rk), 7.3-rc6, soft-locked in 3 of\n3 resumes without a fix and in 0 of 10 with this patch; it ran with an\nout-of-tree dwmac-rk change that keeps the GMAC powered across suspend.\nODROID-HC4 (dwmac-meson8b): 0 of 10 with this patch, 2 of 2 without a\nfix on a 7.3-rc5 build. irq_rgmii_n went up by one per resume."
}
],
"id": "CVE-2026-99188",
"lastModified": "2026-10-28T11:17:39.727",
"metrics": {},
"published": "2026-10-28T11:17:39.727",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/aa07285705f8d5bac464eb1c5b7412f8e88b91e1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/affc6d572935282ef9ab1e0b790cbc31e5ad8bca"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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