CVE-2026-97605
In the Linux kernel, the following vulnerability has been resolved:
erofs: preserve LZMA decoders on resize failure
The pool-resize path frees each stream's old decoder before allocating its replacement. If an allocation fails after some streams have already been replaced, the failed stream is put back on the list with state == NULL. z_erofs_lzma_max_dictsize is still advanced as if the whole pool had been resized.
An existing LZMA mount can select the broken stream and pass NULL to xz_dec_microlzma_reset(). A retry at the same size also skip another resize attempt. Since the global maximum was advanced, thus, the invalid state is left unrepaired.
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Allocate each replacement before freeing the old decoder, temporarily retaining one old decoder during allocation. Stop at the first failure and advance z_erofs_lzma_max_dictsize only after all streams satisfy the request.
Record each stream's dictionary capacity so retries can skip streams already enlarged before a partial failure.
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.20%
- Percentil entre todas las CVEs puntuadas: 9
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
JSON original (NVD)
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{
"id": "CVE-2026-97605",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "622ceaddb7649ca328832f50ba1400af778d75fa",
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"versionType": "git"
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{
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{
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"versionType": "git"
},
{
"status": "affected",
"version": "622ceaddb7649ca328832f50ba1400af778d75fa",
"lessThan": "617d0d8d199ba1790c94310fd75a22d01c97a8d6",
"versionType": "git"
}
],
"programFiles": [
"fs/erofs/decompressor_lzma.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3-rc3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/erofs/decompressor_lzma.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-09-25T11:17:14.543",
"references": [
{
"url": "https://git.kernel.org/stable/c/0b3c8c39e50249470f00a5f73c288b95a55ab576",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/38e9e07ac02a9453a117410776f1502a9980997e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
"url": "https://git.kernel.org/stable/c/604ce546e1b9f35b1f45588004f53fac6b2869c1",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/617d0d8d199ba1790c94310fd75a22d01c97a8d6",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: preserve LZMA decoders on resize failure\n\nThe pool-resize path frees each stream's old decoder before allocating\nits replacement. If an allocation fails after some streams have already\nbeen replaced, the failed stream is put back on the list with state ==\nNULL. z_erofs_lzma_max_dictsize is still advanced as if the whole\npool had been resized.\n\nAn existing LZMA mount can select the broken stream and pass\nNULL to xz_dec_microlzma_reset(). A retry at the same size also\nskip another resize attempt. Since the global maximum was advanced,\nthus, the invalid state is left unrepaired.\n\nAllocate each replacement before freeing the old decoder, temporarily\nretaining one old decoder during allocation. Stop at the first failure\nand advance z_erofs_lzma_max_dictsize only after all streams satisfy\nthe request.\n\nRecord each stream's dictionary capacity so retries can skip streams\nalready enlarged before a partial failure."
}
],
"lastModified": "2026-09-25T11:17:14.543",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}