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CERTFR-2025-AVI-0807
Vulnerability from certfr_avis - Published: 2025-09-19 - Updated: 2025-09-19
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Elles permettent à un attaquant de provoquer un déni de service et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 10 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 10 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 10 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time for NFV 8 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 10 aarch64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems 10 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian 10 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 10 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 10 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 10 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time for NFV 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 10 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems 10 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian 10 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-38463",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38463"
},
{
"name": "CVE-2025-38500",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38500"
},
{
"name": "CVE-2025-38449",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38449"
},
{
"name": "CVE-2025-38332",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38332"
},
{
"name": "CVE-2025-22068",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22068"
},
{
"name": "CVE-2025-38392",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38392"
},
{
"name": "CVE-2025-38350",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38350"
},
{
"name": "CVE-2025-38498",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38498"
},
{
"name": "CVE-2025-38550",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38550"
}
],
"initial_release_date": "2025-09-19T00:00:00",
"last_revision_date": "2025-09-19T00:00:00",
"links": [],
"reference": "CERTFR-2025-AVI-0807",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-09-19T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux de Red Hat. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Red Hat",
"vendor_advisories": [
{
"published_at": "2025-09-15",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2025:15782",
"url": "https://access.redhat.com/errata/RHSA-2025:15782"
},
{
"published_at": "2025-09-15",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2025:15786",
"url": "https://access.redhat.com/errata/RHSA-2025:15786"
}
]
}
CVE-2025-38350 (GCVE-0-2025-38350)
Vulnerability from cvelistv5 – Published: 2025-07-19 06:46 – Updated: 2025-11-03 17:37
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: Always pass notifications when child class becomes empty
Certain classful qdiscs may invoke their classes' dequeue handler on an
enqueue operation. This may unexpectedly empty the child qdisc and thus
make an in-flight class passive via qlen_notify(). Most qdiscs do not
expect such behaviour at this point in time and may re-activate the
class eventually anyways which will lead to a use-after-free.
The referenced fix commit attempted to fix this behavior for the HFSC
case by moving the backlog accounting around, though this turned out to
be incomplete since the parent's parent may run into the issue too.
The following reproducer demonstrates this use-after-free:
tc qdisc add dev lo root handle 1: drr
tc filter add dev lo parent 1: basic classid 1:1
tc class add dev lo parent 1: classid 1:1 drr
tc qdisc add dev lo parent 1:1 handle 2: hfsc def 1
tc class add dev lo parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0
tc qdisc add dev lo parent 2:1 handle 3: netem
tc qdisc add dev lo parent 3:1 handle 4: blackhole
echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888
tc class delete dev lo classid 1:1
echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888
Since backlog accounting issues leading to a use-after-frees on stale
class pointers is a recurring pattern at this point, this patch takes
a different approach. Instead of trying to fix the accounting, the patch
ensures that qdisc_tree_reduce_backlog always calls qlen_notify when
the child qdisc is empty. This solves the problem because deletion of
qdiscs always involves a call to qdisc_reset() and / or
qdisc_purge_queue() which ultimately resets its qlen to 0 thus causing
the following qdisc_tree_reduce_backlog() to report to the parent. Note
that this may call qlen_notify on passive classes multiple times. This
is not a problem after the recent patch series that made all the
classful qdiscs qlen_notify() handlers idempotent.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
1034e3310752e8675e313f7271b348914008719a , < 3b290923ad2b23596208c1e29520badef4356a43
(git)
Affected: f9f593e34d2fb67644372c8f7b033bdc622ad228 , < e9921b57dca05ac5f4fa1fa8e993d4f0ee52e2b7 (git) Affected: 89c301e929a0db14ebd94b4d97764ce1d6981653 , < e269f29e9395527bc00c213c6b15da04ebb35070 (git) Affected: f1dde3eb17dc1b8bd07aed00004b1e05fc87a3d4 , < 7874c9c132e906a52a187d045995b115973c93fb (git) Affected: 93c276942e75de0e5bc91576300d292e968f5a02 , < f680a4643c6f71e758d8fe0431a958e9a6a4f59d (git) Affected: 49b21795b8e5654a7df3d910a12e1060da4c04cf , < a553afd91f55ff39b1e8a1c4989a29394c9e0472 (git) Affected: 3f981138109f63232a5fb7165938d4c945cc1b9d , < a44acdd9e84a211989ff4b9b92bf3545d8456ad5 (git) Affected: 3f981138109f63232a5fb7165938d4c945cc1b9d , < 103406b38c600fec1fe375a77b27d87e314aea09 (git) Affected: 3f3a22eebbc32b4fa8ce9c1d5f9db214b45b9335 (git) |
|||||||
|
|||||||||
{
"containers": {
"adp": [
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"providerMetadata": {
"dateUpdated": "2025-11-03T17:37:00.889Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
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"title": "CVE Program Container"
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"versionType": "git"
},
{
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"versions": [
{
"status": "affected",
"version": "6.15"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.4.296",
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{
"lessThanOrEqual": "6.12.*",
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},
{
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"status": "unaffected",
"version": "6.15.6",
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},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
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}
],
"cpeApplicability": [
{
"nodes": [
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},
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{
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: Always pass notifications when child class becomes empty\n\nCertain classful qdiscs may invoke their classes\u0027 dequeue handler on an\nenqueue operation. This may unexpectedly empty the child qdisc and thus\nmake an in-flight class passive via qlen_notify(). Most qdiscs do not\nexpect such behaviour at this point in time and may re-activate the\nclass eventually anyways which will lead to a use-after-free.\n\nThe referenced fix commit attempted to fix this behavior for the HFSC\ncase by moving the backlog accounting around, though this turned out to\nbe incomplete since the parent\u0027s parent may run into the issue too.\nThe following reproducer demonstrates this use-after-free:\n\n tc qdisc add dev lo root handle 1: drr\n tc filter add dev lo parent 1: basic classid 1:1\n tc class add dev lo parent 1: classid 1:1 drr\n tc qdisc add dev lo parent 1:1 handle 2: hfsc def 1\n tc class add dev lo parent 2: classid 2:1 hfsc rt m1 8 d 1 m2 0\n tc qdisc add dev lo parent 2:1 handle 3: netem\n tc qdisc add dev lo parent 3:1 handle 4: blackhole\n\n echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888\n tc class delete dev lo classid 1:1\n echo 1 | socat -u STDIN UDP4-DATAGRAM:127.0.0.1:8888\n\nSince backlog accounting issues leading to a use-after-frees on stale\nclass pointers is a recurring pattern at this point, this patch takes\na different approach. Instead of trying to fix the accounting, the patch\nensures that qdisc_tree_reduce_backlog always calls qlen_notify when\nthe child qdisc is empty. This solves the problem because deletion of\nqdiscs always involves a call to qdisc_reset() and / or\nqdisc_purge_queue() which ultimately resets its qlen to 0 thus causing\nthe following qdisc_tree_reduce_backlog() to report to the parent. Note\nthat this may call qlen_notify on passive classes multiple times. This\nis not a problem after the recent patch series that made all the\nclassful qdiscs qlen_notify() handlers idempotent."
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T04:19:38.148Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/3b290923ad2b23596208c1e29520badef4356a43"
},
{
"url": "https://git.kernel.org/stable/c/e9921b57dca05ac5f4fa1fa8e993d4f0ee52e2b7"
},
{
"url": "https://git.kernel.org/stable/c/e269f29e9395527bc00c213c6b15da04ebb35070"
},
{
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CVE-2025-22068 (GCVE-0-2025-22068)
Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2025-10-01 16:16
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
ublk: make sure ubq->canceling is set when queue is frozen
Now ublk driver depends on `ubq->canceling` for deciding if the request
can be dispatched via uring_cmd & io_uring_cmd_complete_in_task().
Once ubq->canceling is set, the uring_cmd can be done via ublk_cancel_cmd()
and io_uring_cmd_done().
So set ubq->canceling when queue is frozen, this way makes sure that the
flag can be observed from ublk_queue_rq() reliably, and avoids
use-after-free on uring_cmd.
Severity ?
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
216c8f5ef0f209a3797292c487bdaa6991ab4b92 , < 7e3497d7dacb5aee69dd9be842b778083cae0e75
(git)
Affected: 216c8f5ef0f209a3797292c487bdaa6991ab4b92 , < 5491400589e7572c2d2627ed6384302f7672aa1d (git) Affected: 216c8f5ef0f209a3797292c487bdaa6991ab4b92 , < 9158359015f0eda00e521e35b7bc7ebce176aebf (git) Affected: 216c8f5ef0f209a3797292c487bdaa6991ab4b92 , < 8741d0737921ec1c03cf59aebf4d01400c2b461a (git) |
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CVE-2025-38550 (GCVE-0-2025-38550)
Vulnerability from cvelistv5 – Published: 2025-08-16 11:34 – Updated: 2025-11-03 17:39
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: mcast: Delay put pmc->idev in mld_del_delrec()
pmc->idev is still used in ip6_mc_clear_src(), so as mld_clear_delrec()
does, the reference should be put after ip6_mc_clear_src() return.
Severity ?
No CVSS data available.
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
63ed8de4be81b699ca727e9f8e3344bd487806d7 , < 6e4eec86fe5f6b3fdbc702d1d36ac2a6e7ec0806
(git)
Affected: 63ed8de4be81b699ca727e9f8e3344bd487806d7 , < 728db00a14cacb37f36e9382ab5fad55caf890cc (git) Affected: 63ed8de4be81b699ca727e9f8e3344bd487806d7 , < dcbc346f50a009d8b7f4e330f9f2e22d6442fa26 (git) Affected: 63ed8de4be81b699ca727e9f8e3344bd487806d7 , < 7929d27c747eafe8fca3eecd74a334503ee4c839 (git) Affected: 63ed8de4be81b699ca727e9f8e3344bd487806d7 , < 5f18e0130194550dff734e155029ae734378b5ea (git) Affected: 63ed8de4be81b699ca727e9f8e3344bd487806d7 , < ae3264a25a4635531264728859dbe9c659fad554 (git) |
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CVE-2025-38332 (GCVE-0-2025-38332)
Vulnerability from cvelistv5 – Published: 2025-07-10 08:15 – Updated: 2025-11-03 17:36
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Use memcpy() for BIOS version
The strlcat() with FORTIFY support is triggering a panic because it
thinks the target buffer will overflow although the correct target
buffer size is passed in.
Anyway, instead of memset() with 0 followed by a strlcat(), just use
memcpy() and ensure that the resulting buffer is NULL terminated.
BIOSVersion is only used for the lpfc_printf_log() which expects a
properly terminated string.
Severity ?
No CVSS data available.
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ac7bfaa099ec3e4d7dfd0ab9726fc3bc7911365d
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b699bda5db818b684ff62d140defd6394f38f3d6 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d34f2384d6df11a6c67039b612c2437f46e587e8 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 75ea8375c5a83f46c47bfb3de6217c7589a8df93 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 34c0a670556b24d36c9f8934227edb819ca5609e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2f63bf0d2b146956a2f2ff3b25cee71019e64561 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 003baa7a1a152576d744bd655820449bbdb0248e (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ae82eaf4aeea060bb736c3e20c0568b67c701d7d (git) |
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CVE-2025-38392 (GCVE-0-2025-38392)
Vulnerability from cvelistv5 – Published: 2025-07-25 12:53 – Updated: 2025-07-28 04:20
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
idpf: convert control queue mutex to a spinlock
With VIRTCHNL2_CAP_MACFILTER enabled, the following warning is generated
on module load:
[ 324.701677] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:578
[ 324.701684] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1582, name: NetworkManager
[ 324.701689] preempt_count: 201, expected: 0
[ 324.701693] RCU nest depth: 0, expected: 0
[ 324.701697] 2 locks held by NetworkManager/1582:
[ 324.701702] #0: ffffffff9f7be770 (rtnl_mutex){....}-{3:3}, at: rtnl_newlink+0x791/0x21e0
[ 324.701730] #1: ff1100216c380368 (_xmit_ETHER){....}-{2:2}, at: __dev_open+0x3f0/0x870
[ 324.701749] Preemption disabled at:
[ 324.701752] [<ffffffff9cd23b9d>] __dev_open+0x3dd/0x870
[ 324.701765] CPU: 30 UID: 0 PID: 1582 Comm: NetworkManager Not tainted 6.15.0-rc5+ #2 PREEMPT(voluntary)
[ 324.701771] Hardware name: Intel Corporation M50FCP2SBSTD/M50FCP2SBSTD, BIOS SE5C741.86B.01.01.0001.2211140926 11/14/2022
[ 324.701774] Call Trace:
[ 324.701777] <TASK>
[ 324.701779] dump_stack_lvl+0x5d/0x80
[ 324.701788] ? __dev_open+0x3dd/0x870
[ 324.701793] __might_resched.cold+0x1ef/0x23d
<..>
[ 324.701818] __mutex_lock+0x113/0x1b80
<..>
[ 324.701917] idpf_ctlq_clean_sq+0xad/0x4b0 [idpf]
[ 324.701935] ? kasan_save_track+0x14/0x30
[ 324.701941] idpf_mb_clean+0x143/0x380 [idpf]
<..>
[ 324.701991] idpf_send_mb_msg+0x111/0x720 [idpf]
[ 324.702009] idpf_vc_xn_exec+0x4cc/0x990 [idpf]
[ 324.702021] ? rcu_is_watching+0x12/0xc0
[ 324.702035] idpf_add_del_mac_filters+0x3ed/0xb50 [idpf]
<..>
[ 324.702122] __hw_addr_sync_dev+0x1cf/0x300
[ 324.702126] ? find_held_lock+0x32/0x90
[ 324.702134] idpf_set_rx_mode+0x317/0x390 [idpf]
[ 324.702152] __dev_open+0x3f8/0x870
[ 324.702159] ? __pfx___dev_open+0x10/0x10
[ 324.702174] __dev_change_flags+0x443/0x650
<..>
[ 324.702208] netif_change_flags+0x80/0x160
[ 324.702218] do_setlink.isra.0+0x16a0/0x3960
<..>
[ 324.702349] rtnl_newlink+0x12fd/0x21e0
The sequence is as follows:
rtnl_newlink()->
__dev_change_flags()->
__dev_open()->
dev_set_rx_mode() - > # disables BH and grabs "dev->addr_list_lock"
idpf_set_rx_mode() -> # proceed only if VIRTCHNL2_CAP_MACFILTER is ON
__dev_uc_sync() ->
idpf_add_mac_filter ->
idpf_add_del_mac_filters ->
idpf_send_mb_msg() ->
idpf_mb_clean() ->
idpf_ctlq_clean_sq() # mutex_lock(cq_lock)
Fix by converting cq_lock to a spinlock. All operations under the new
lock are safe except freeing the DMA memory, which may use vunmap(). Fix
by requesting a contiguous physical memory for the DMA mapping.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
a251eee62133774cf35ff829041377e721ef9c8c , < 9a36715cd6bc6a6f16230e19a7f947bab34b3fe5
(git)
Affected: a251eee62133774cf35ff829041377e721ef9c8c , < dc6c3c2c9dfdaa3a3357f59a80a2904677a71a9a (git) Affected: a251eee62133774cf35ff829041377e721ef9c8c , < b2beb5bb2cd90d7939e470ed4da468683f41baa3 (git) |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: convert control queue mutex to a spinlock\n\nWith VIRTCHNL2_CAP_MACFILTER enabled, the following warning is generated\non module load:\n\n[ 324.701677] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:578\n[ 324.701684] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1582, name: NetworkManager\n[ 324.701689] preempt_count: 201, expected: 0\n[ 324.701693] RCU nest depth: 0, expected: 0\n[ 324.701697] 2 locks held by NetworkManager/1582:\n[ 324.701702] #0: ffffffff9f7be770 (rtnl_mutex){....}-{3:3}, at: rtnl_newlink+0x791/0x21e0\n[ 324.701730] #1: ff1100216c380368 (_xmit_ETHER){....}-{2:2}, at: __dev_open+0x3f0/0x870\n[ 324.701749] Preemption disabled at:\n[ 324.701752] [\u003cffffffff9cd23b9d\u003e] __dev_open+0x3dd/0x870\n[ 324.701765] CPU: 30 UID: 0 PID: 1582 Comm: NetworkManager Not tainted 6.15.0-rc5+ #2 PREEMPT(voluntary)\n[ 324.701771] Hardware name: Intel Corporation M50FCP2SBSTD/M50FCP2SBSTD, BIOS SE5C741.86B.01.01.0001.2211140926 11/14/2022\n[ 324.701774] Call Trace:\n[ 324.701777] \u003cTASK\u003e\n[ 324.701779] dump_stack_lvl+0x5d/0x80\n[ 324.701788] ? __dev_open+0x3dd/0x870\n[ 324.701793] __might_resched.cold+0x1ef/0x23d\n\u003c..\u003e\n[ 324.701818] __mutex_lock+0x113/0x1b80\n\u003c..\u003e\n[ 324.701917] idpf_ctlq_clean_sq+0xad/0x4b0 [idpf]\n[ 324.701935] ? kasan_save_track+0x14/0x30\n[ 324.701941] idpf_mb_clean+0x143/0x380 [idpf]\n\u003c..\u003e\n[ 324.701991] idpf_send_mb_msg+0x111/0x720 [idpf]\n[ 324.702009] idpf_vc_xn_exec+0x4cc/0x990 [idpf]\n[ 324.702021] ? rcu_is_watching+0x12/0xc0\n[ 324.702035] idpf_add_del_mac_filters+0x3ed/0xb50 [idpf]\n\u003c..\u003e\n[ 324.702122] __hw_addr_sync_dev+0x1cf/0x300\n[ 324.702126] ? find_held_lock+0x32/0x90\n[ 324.702134] idpf_set_rx_mode+0x317/0x390 [idpf]\n[ 324.702152] __dev_open+0x3f8/0x870\n[ 324.702159] ? __pfx___dev_open+0x10/0x10\n[ 324.702174] __dev_change_flags+0x443/0x650\n\u003c..\u003e\n[ 324.702208] netif_change_flags+0x80/0x160\n[ 324.702218] do_setlink.isra.0+0x16a0/0x3960\n\u003c..\u003e\n[ 324.702349] rtnl_newlink+0x12fd/0x21e0\n\nThe sequence is as follows:\n\trtnl_newlink()-\u003e\n\t__dev_change_flags()-\u003e\n\t__dev_open()-\u003e\n\tdev_set_rx_mode() - \u003e # disables BH and grabs \"dev-\u003eaddr_list_lock\"\n\tidpf_set_rx_mode() -\u003e # proceed only if VIRTCHNL2_CAP_MACFILTER is ON\n\t__dev_uc_sync() -\u003e\n\tidpf_add_mac_filter -\u003e\n\tidpf_add_del_mac_filters -\u003e\n\tidpf_send_mb_msg() -\u003e\n\tidpf_mb_clean() -\u003e\n\tidpf_ctlq_clean_sq() # mutex_lock(cq_lock)\n\nFix by converting cq_lock to a spinlock. All operations under the new\nlock are safe except freeing the DMA memory, which may use vunmap(). Fix\nby requesting a contiguous physical memory for the DMA mapping."
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CVE-2025-38498 (GCVE-0-2025-38498)
Vulnerability from cvelistv5 – Published: 2025-07-30 06:03 – Updated: 2025-11-03 17:39
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
do_change_type(): refuse to operate on unmounted/not ours mounts
Ensure that propagation settings can only be changed for mounts located
in the caller's mount namespace. This change aligns permission checking
with the rest of mount(2).
Severity ?
No CVSS data available.
Assigner
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < 787937c4e373f1722c4343e5a5a4eb0f8543e589
(git)
Affected: 07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < c7d11fdf8e5db5f34a6c062c7e6ba3a0971879d2 (git) Affected: 07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < 432a171d60056489270c462e651e6c3a13f855b1 (git) Affected: 07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < 064014f7812744451d5d0592f3d2bcd727f2ee93 (git) Affected: 07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < 4f091ad0862b02dc42a19a120b7048de848561f8 (git) Affected: 07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < 9c1ddfeb662b668fff69c5f1cfdd9f5d23d55d23 (git) Affected: 07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < 19554c79a2095ddde850906a067915c1ef3a4114 (git) Affected: 07b20889e3052c7e77d6a6a54e7e83446eb1ba84 , < 12f147ddd6de7382dad54812e65f3f08d05809fc (git) |
|||||||
|
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CVE-2025-38463 (GCVE-0-2025-38463)
Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2025-07-28 04:23
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
tcp: Correct signedness in skb remaining space calculation
Syzkaller reported a bug [1] where sk->sk_forward_alloc can overflow.
When we send data, if an skb exists at the tail of the write queue, the
kernel will attempt to append the new data to that skb. However, the code
that checks for available space in the skb is flawed:
'''
copy = size_goal - skb->len
'''
The types of the variables involved are:
'''
copy: ssize_t (s64 on 64-bit systems)
size_goal: int
skb->len: unsigned int
'''
Due to C's type promotion rules, the signed size_goal is converted to an
unsigned int to match skb->len before the subtraction. The result is an
unsigned int.
When this unsigned int result is then assigned to the s64 copy variable,
it is zero-extended, preserving its non-negative value. Consequently, copy
is always >= 0.
Assume we are sending 2GB of data and size_goal has been adjusted to a
value smaller than skb->len. The subtraction will result in copy holding a
very large positive integer. In the subsequent logic, this large value is
used to update sk->sk_forward_alloc, which can easily cause it to overflow.
The syzkaller reproducer uses TCP_REPAIR to reliably create this
condition. However, this can also occur in real-world scenarios. The
tcp_bound_to_half_wnd() function can also reduce size_goal to a small
value. This would cause the subsequent tcp_wmem_schedule() to set
sk->sk_forward_alloc to a value close to INT_MAX. Further memory
allocation requests would then cause sk_forward_alloc to wrap around and
become negative.
[1]: https://syzkaller.appspot.com/bug?extid=de6565462ab540f50e47
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
270a1c3de47e49dd2fc18f48e46b101e48050e78 , < 81373cd1d72d87c7d844d4454a526b8f53e72d00
(git)
Affected: 270a1c3de47e49dd2fc18f48e46b101e48050e78 , < 62e6160cfb5514787bda833d466509edc38fde23 (git) Affected: 270a1c3de47e49dd2fc18f48e46b101e48050e78 , < 9f164fa6bb09fbcc60fa5c3ff551ce9eec1befd7 (git) Affected: 270a1c3de47e49dd2fc18f48e46b101e48050e78 , < d3a5f2871adc0c61c61869f37f3e697d97f03d8c (git) |
||
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CVE-2025-38500 (GCVE-0-2025-38500)
Vulnerability from cvelistv5 – Published: 2025-08-12 16:02 – Updated: 2025-11-03 17:39
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfrm: interface: fix use-after-free after changing collect_md xfrm interface
collect_md property on xfrm interfaces can only be set on device creation,
thus xfrmi_changelink() should fail when called on such interfaces.
The check to enforce this was done only in the case where the xi was
returned from xfrmi_locate() which doesn't look for the collect_md
interface, and thus the validation was never reached.
Calling changelink would thus errornously place the special interface xi
in the xfrmi_net->xfrmi hash, but since it also exists in the
xfrmi_net->collect_md_xfrmi pointer it would lead to a double free when
the net namespace was taken down [1].
Change the check to use the xi from netdev_priv which is available earlier
in the function to prevent changes in xfrm collect_md interfaces.
[1] resulting oops:
[ 8.516540] kernel BUG at net/core/dev.c:12029!
[ 8.516552] Oops: invalid opcode: 0000 [#1] SMP NOPTI
[ 8.516559] CPU: 0 UID: 0 PID: 12 Comm: kworker/u80:0 Not tainted 6.15.0-virtme #5 PREEMPT(voluntary)
[ 8.516565] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 8.516569] Workqueue: netns cleanup_net
[ 8.516579] RIP: 0010:unregister_netdevice_many_notify+0x101/0xab0
[ 8.516590] Code: 90 0f 0b 90 48 8b b0 78 01 00 00 48 8b 90 80 01 00 00 48 89 56 08 48 89 32 4c 89 80 78 01 00 00 48 89 b8 80 01 00 00 eb ac 90 <0f> 0b 48 8b 45 00 4c 8d a0 88 fe ff ff 48 39 c5 74 5c 41 80 bc 24
[ 8.516593] RSP: 0018:ffffa93b8006bd30 EFLAGS: 00010206
[ 8.516598] RAX: ffff98fe4226e000 RBX: ffffa93b8006bd58 RCX: ffffa93b8006bc60
[ 8.516601] RDX: 0000000000000004 RSI: 0000000000000000 RDI: dead000000000122
[ 8.516603] RBP: ffffa93b8006bdd8 R08: dead000000000100 R09: ffff98fe4133c100
[ 8.516605] R10: 0000000000000000 R11: 00000000000003d2 R12: ffffa93b8006be00
[ 8.516608] R13: ffffffff96c1a510 R14: ffffffff96c1a510 R15: ffffa93b8006be00
[ 8.516615] FS: 0000000000000000(0000) GS:ffff98fee73b7000(0000) knlGS:0000000000000000
[ 8.516619] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.516622] CR2: 00007fcd2abd0700 CR3: 000000003aa40000 CR4: 0000000000752ef0
[ 8.516625] PKRU: 55555554
[ 8.516627] Call Trace:
[ 8.516632] <TASK>
[ 8.516635] ? rtnl_is_locked+0x15/0x20
[ 8.516641] ? unregister_netdevice_queue+0x29/0xf0
[ 8.516650] ops_undo_list+0x1f2/0x220
[ 8.516659] cleanup_net+0x1ad/0x2e0
[ 8.516664] process_one_work+0x160/0x380
[ 8.516673] worker_thread+0x2aa/0x3c0
[ 8.516679] ? __pfx_worker_thread+0x10/0x10
[ 8.516686] kthread+0xfb/0x200
[ 8.516690] ? __pfx_kthread+0x10/0x10
[ 8.516693] ? __pfx_kthread+0x10/0x10
[ 8.516697] ret_from_fork+0x82/0xf0
[ 8.516705] ? __pfx_kthread+0x10/0x10
[ 8.516709] ret_from_fork_asm+0x1a/0x30
[ 8.516718] </TASK>
Severity ?
7.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
abc340b38ba25cd6c7aa2c0bd9150d30738c82d0 , < a8d4748b954584ab7bd800f1a4e46d5b0eeb5ce4
(git)
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||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: interface: fix use-after-free after changing collect_md xfrm interface\n\ncollect_md property on xfrm interfaces can only be set on device creation,\nthus xfrmi_changelink() should fail when called on such interfaces.\n\nThe check to enforce this was done only in the case where the xi was\nreturned from xfrmi_locate() which doesn\u0027t look for the collect_md\ninterface, and thus the validation was never reached.\n\nCalling changelink would thus errornously place the special interface xi\nin the xfrmi_net-\u003exfrmi hash, but since it also exists in the\nxfrmi_net-\u003ecollect_md_xfrmi pointer it would lead to a double free when\nthe net namespace was taken down [1].\n\nChange the check to use the xi from netdev_priv which is available earlier\nin the function to prevent changes in xfrm collect_md interfaces.\n\n[1] resulting oops:\n[ 8.516540] kernel BUG at net/core/dev.c:12029!\n[ 8.516552] Oops: invalid opcode: 0000 [#1] SMP NOPTI\n[ 8.516559] CPU: 0 UID: 0 PID: 12 Comm: kworker/u80:0 Not tainted 6.15.0-virtme #5 PREEMPT(voluntary)\n[ 8.516565] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[ 8.516569] Workqueue: netns cleanup_net\n[ 8.516579] RIP: 0010:unregister_netdevice_many_notify+0x101/0xab0\n[ 8.516590] Code: 90 0f 0b 90 48 8b b0 78 01 00 00 48 8b 90 80 01 00 00 48 89 56 08 48 89 32 4c 89 80 78 01 00 00 48 89 b8 80 01 00 00 eb ac 90 \u003c0f\u003e 0b 48 8b 45 00 4c 8d a0 88 fe ff ff 48 39 c5 74 5c 41 80 bc 24\n[ 8.516593] RSP: 0018:ffffa93b8006bd30 EFLAGS: 00010206\n[ 8.516598] RAX: ffff98fe4226e000 RBX: ffffa93b8006bd58 RCX: ffffa93b8006bc60\n[ 8.516601] RDX: 0000000000000004 RSI: 0000000000000000 RDI: dead000000000122\n[ 8.516603] RBP: ffffa93b8006bdd8 R08: dead000000000100 R09: ffff98fe4133c100\n[ 8.516605] R10: 0000000000000000 R11: 00000000000003d2 R12: ffffa93b8006be00\n[ 8.516608] R13: ffffffff96c1a510 R14: ffffffff96c1a510 R15: ffffa93b8006be00\n[ 8.516615] FS: 0000000000000000(0000) GS:ffff98fee73b7000(0000) knlGS:0000000000000000\n[ 8.516619] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 8.516622] CR2: 00007fcd2abd0700 CR3: 000000003aa40000 CR4: 0000000000752ef0\n[ 8.516625] PKRU: 55555554\n[ 8.516627] Call Trace:\n[ 8.516632] \u003cTASK\u003e\n[ 8.516635] ? rtnl_is_locked+0x15/0x20\n[ 8.516641] ? unregister_netdevice_queue+0x29/0xf0\n[ 8.516650] ops_undo_list+0x1f2/0x220\n[ 8.516659] cleanup_net+0x1ad/0x2e0\n[ 8.516664] process_one_work+0x160/0x380\n[ 8.516673] worker_thread+0x2aa/0x3c0\n[ 8.516679] ? __pfx_worker_thread+0x10/0x10\n[ 8.516686] kthread+0xfb/0x200\n[ 8.516690] ? __pfx_kthread+0x10/0x10\n[ 8.516693] ? __pfx_kthread+0x10/0x10\n[ 8.516697] ret_from_fork+0x82/0xf0\n[ 8.516705] ? __pfx_kthread+0x10/0x10\n[ 8.516709] ret_from_fork_asm+0x1a/0x30\n[ 8.516718] \u003c/TASK\u003e"
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"title": "xfrm: interface: fix use-after-free after changing collect_md xfrm interface",
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"cveId": "CVE-2025-38500",
"datePublished": "2025-08-12T16:02:42.363Z",
"dateReserved": "2025-04-16T04:51:24.022Z",
"dateUpdated": "2025-11-03T17:39:09.573Z",
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CVE-2025-38449 (GCVE-0-2025-38449)
Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2025-07-28 04:22
VLAI?
EPSS
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/gem: Acquire references on GEM handles for framebuffers
A GEM handle can be released while the GEM buffer object is attached
to a DRM framebuffer. This leads to the release of the dma-buf backing
the buffer object, if any. [1] Trying to use the framebuffer in further
mode-setting operations leads to a segmentation fault. Most easily
happens with driver that use shadow planes for vmap-ing the dma-buf
during a page flip. An example is shown below.
[ 156.791968] ------------[ cut here ]------------
[ 156.796830] WARNING: CPU: 2 PID: 2255 at drivers/dma-buf/dma-buf.c:1527 dma_buf_vmap+0x224/0x430
[...]
[ 156.942028] RIP: 0010:dma_buf_vmap+0x224/0x430
[ 157.043420] Call Trace:
[ 157.045898] <TASK>
[ 157.048030] ? show_trace_log_lvl+0x1af/0x2c0
[ 157.052436] ? show_trace_log_lvl+0x1af/0x2c0
[ 157.056836] ? show_trace_log_lvl+0x1af/0x2c0
[ 157.061253] ? drm_gem_shmem_vmap+0x74/0x710
[ 157.065567] ? dma_buf_vmap+0x224/0x430
[ 157.069446] ? __warn.cold+0x58/0xe4
[ 157.073061] ? dma_buf_vmap+0x224/0x430
[ 157.077111] ? report_bug+0x1dd/0x390
[ 157.080842] ? handle_bug+0x5e/0xa0
[ 157.084389] ? exc_invalid_op+0x14/0x50
[ 157.088291] ? asm_exc_invalid_op+0x16/0x20
[ 157.092548] ? dma_buf_vmap+0x224/0x430
[ 157.096663] ? dma_resv_get_singleton+0x6d/0x230
[ 157.101341] ? __pfx_dma_buf_vmap+0x10/0x10
[ 157.105588] ? __pfx_dma_resv_get_singleton+0x10/0x10
[ 157.110697] drm_gem_shmem_vmap+0x74/0x710
[ 157.114866] drm_gem_vmap+0xa9/0x1b0
[ 157.118763] drm_gem_vmap_unlocked+0x46/0xa0
[ 157.123086] drm_gem_fb_vmap+0xab/0x300
[ 157.126979] drm_atomic_helper_prepare_planes.part.0+0x487/0xb10
[ 157.133032] ? lockdep_init_map_type+0x19d/0x880
[ 157.137701] drm_atomic_helper_commit+0x13d/0x2e0
[ 157.142671] ? drm_atomic_nonblocking_commit+0xa0/0x180
[ 157.147988] drm_mode_atomic_ioctl+0x766/0xe40
[...]
[ 157.346424] ---[ end trace 0000000000000000 ]---
Acquiring GEM handles for the framebuffer's GEM buffer objects prevents
this from happening. The framebuffer's cleanup later puts the handle
references.
Commit 1a148af06000 ("drm/gem-shmem: Use dma_buf from GEM object
instance") triggers the segmentation fault easily by using the dma-buf
field more widely. The underlying issue with reference counting has
been present before.
v2:
- acquire the handle instead of the BO (Christian)
- fix comment style (Christian)
- drop the Fixes tag (Christian)
- rename err_ gotos
- add missing Link tag
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cb4c956a15f8b7f870649454771fc3761f504b5f
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 08480e285c6a82ce689008d643e4a51db0aaef8b (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3cf520d9860d4ec9f7f32068825da31f18dd3f25 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5307dce878d4126e1b375587318955bd019c3741 (git) |
||
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gem: Acquire references on GEM handles for framebuffers\n\nA GEM handle can be released while the GEM buffer object is attached\nto a DRM framebuffer. This leads to the release of the dma-buf backing\nthe buffer object, if any. [1] Trying to use the framebuffer in further\nmode-setting operations leads to a segmentation fault. Most easily\nhappens with driver that use shadow planes for vmap-ing the dma-buf\nduring a page flip. An example is shown below.\n\n[ 156.791968] ------------[ cut here ]------------\n[ 156.796830] WARNING: CPU: 2 PID: 2255 at drivers/dma-buf/dma-buf.c:1527 dma_buf_vmap+0x224/0x430\n[...]\n[ 156.942028] RIP: 0010:dma_buf_vmap+0x224/0x430\n[ 157.043420] Call Trace:\n[ 157.045898] \u003cTASK\u003e\n[ 157.048030] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.052436] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.056836] ? show_trace_log_lvl+0x1af/0x2c0\n[ 157.061253] ? drm_gem_shmem_vmap+0x74/0x710\n[ 157.065567] ? dma_buf_vmap+0x224/0x430\n[ 157.069446] ? __warn.cold+0x58/0xe4\n[ 157.073061] ? dma_buf_vmap+0x224/0x430\n[ 157.077111] ? report_bug+0x1dd/0x390\n[ 157.080842] ? handle_bug+0x5e/0xa0\n[ 157.084389] ? exc_invalid_op+0x14/0x50\n[ 157.088291] ? asm_exc_invalid_op+0x16/0x20\n[ 157.092548] ? dma_buf_vmap+0x224/0x430\n[ 157.096663] ? dma_resv_get_singleton+0x6d/0x230\n[ 157.101341] ? __pfx_dma_buf_vmap+0x10/0x10\n[ 157.105588] ? __pfx_dma_resv_get_singleton+0x10/0x10\n[ 157.110697] drm_gem_shmem_vmap+0x74/0x710\n[ 157.114866] drm_gem_vmap+0xa9/0x1b0\n[ 157.118763] drm_gem_vmap_unlocked+0x46/0xa0\n[ 157.123086] drm_gem_fb_vmap+0xab/0x300\n[ 157.126979] drm_atomic_helper_prepare_planes.part.0+0x487/0xb10\n[ 157.133032] ? lockdep_init_map_type+0x19d/0x880\n[ 157.137701] drm_atomic_helper_commit+0x13d/0x2e0\n[ 157.142671] ? drm_atomic_nonblocking_commit+0xa0/0x180\n[ 157.147988] drm_mode_atomic_ioctl+0x766/0xe40\n[...]\n[ 157.346424] ---[ end trace 0000000000000000 ]---\n\nAcquiring GEM handles for the framebuffer\u0027s GEM buffer objects prevents\nthis from happening. The framebuffer\u0027s cleanup later puts the handle\nreferences.\n\nCommit 1a148af06000 (\"drm/gem-shmem: Use dma_buf from GEM object\ninstance\") triggers the segmentation fault easily by using the dma-buf\nfield more widely. The underlying issue with reference counting has\nbeen present before.\n\nv2:\n- acquire the handle instead of the BO (Christian)\n- fix comment style (Christian)\n- drop the Fixes tag (Christian)\n- rename err_ gotos\n- add missing Link tag"
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Loading…
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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