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EUVD-2026-320335
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 07:40
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T07:40:04.511358+00:00",
"id": "EUVD-2026-320335"
}
CVE-2022-49916 (GCVE-0-2022-49916)
Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2026-05-23 15:23
VLAI
EPSS
VEX
Title
rose: Fix NULL pointer dereference in rose_send_frame()
Summary
In the Linux kernel, the following vulnerability has been resolved:
rose: Fix NULL pointer dereference in rose_send_frame()
The syzkaller reported an issue:
KASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]
CPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: rcu_gp srcu_invoke_callbacks
RIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101
Call Trace:
<IRQ>
rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255
rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009
rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111
call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
__do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
[...]
</IRQ>
It triggers NULL pointer dereference when 'neigh->dev->dev_addr' is
called in the rose_send_frame(). It's the first occurrence of the
`neigh` is in rose_loopback_timer() as `rose_loopback_neigh', and
the 'dev' in 'rose_loopback_neigh' is initialized sa nullptr.
It had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf
("rose: Fix Null pointer dereference in rose_send_frame()") ever.
But it's introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8
("rose: check NULL rose_loopback_neigh->loopback") again.
We fix it by add NULL check in rose_transmit_clear_request(). When
the 'dev' in 'neigh' is NULL, we don't reply the request and just
clear it.
syzkaller don't provide repro, and I provide a syz repro like:
r0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)
ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000180)={'rose0\x00', 0x201})
r1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)
bind$rose(r1, &(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40)
connect$rose(r1, &(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 16:00 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
76885373129b13df35ecc9b4ee86ea5840f12133 , < 01b9c68c121847d05a4ccef68244dadf82bfa331
(git)
Affected: b8f9de195d6303f52bae16c7911f35ac14ba7e3d , < bbc03d74e641e824754443b908454ca9e203773e (git) Affected: 0aae33feb7a56b28318f92c960a3d08d9c305984 , < 5b46adfbee1e429f33b10a88d6c00fa88f3d6c77 (git) Affected: 6e4b20d548fc97ecbdca15c8d96302ee5e3e6313 , < b13be5e852b03f376058027e462fad4230240891 (git) Affected: de3deadd11987070788b48825bec4647458b988d , < f06186e5271b980bac03f5c97276ed0146ddc9b0 (git) Affected: 9cf85759e104d7e9c3fd8920a554195b715d6797 , < 3e2129c67daca21043a26575108f6286c85e71f6 (git) Affected: 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8 , < a601e5eded33bb88b8a42743db8fef3ad41dd97e (git) Affected: 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8 , < e97c089d7a49f67027395ddf70bf327eeac2611e (git) Affected: 9197ca40fd9de265caedba70d0cb5814c4e45952 (git) Affected: 4.9.327 , < 4.9.333 (semver) Affected: 4.14.292 , < 4.14.299 (semver) Affected: 4.19.257 , < 4.19.265 (semver) Affected: 5.4.212 , < 5.4.224 (semver) Affected: 5.10.140 , < 5.10.154 (semver) Affected: 5.15.64 , < 5.15.78 (semver) Affected: 5.19.6 , < 5.20 (semver) |
|
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (semver) Unaffected: 4.9.333 , ≤ 4.9.* (semver) Unaffected: 4.14.299 , ≤ 4.14.* (semver) Unaffected: 4.19.265 , ≤ 4.19.* (semver) Unaffected: 5.4.224 , ≤ 5.4.* (semver) Unaffected: 5.10.154 , ≤ 5.10.* (semver) Unaffected: 5.15.78 , ≤ 5.15.* (semver) Unaffected: 6.0.8 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2022-49916",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-10-01T16:00:00.455092Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"description": "CWE-476 NULL Pointer Dereference",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-01T16:00:19.393Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/rose/rose_link.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "01b9c68c121847d05a4ccef68244dadf82bfa331",
"status": "affected",
"version": "76885373129b13df35ecc9b4ee86ea5840f12133",
"versionType": "git"
},
{
"lessThan": "bbc03d74e641e824754443b908454ca9e203773e",
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"version": "b8f9de195d6303f52bae16c7911f35ac14ba7e3d",
"versionType": "git"
},
{
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"version": "0aae33feb7a56b28318f92c960a3d08d9c305984",
"versionType": "git"
},
{
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"status": "affected",
"version": "6e4b20d548fc97ecbdca15c8d96302ee5e3e6313",
"versionType": "git"
},
{
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},
{
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"status": "affected",
"version": "9cf85759e104d7e9c3fd8920a554195b715d6797",
"versionType": "git"
},
{
"lessThan": "a601e5eded33bb88b8a42743db8fef3ad41dd97e",
"status": "affected",
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{
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},
{
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"versionType": "semver"
},
{
"lessThan": "5.4.224",
"status": "affected",
"version": "5.4.212",
"versionType": "semver"
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"status": "affected",
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}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/rose/rose_link.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"lessThan": "6.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"version": "4.9.333",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.299",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.224",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.154",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.78",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.0.*",
"status": "unaffected",
"version": "6.0.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "4.9.333",
"versionStartIncluding": "4.9.327",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"vulnerable": true
},
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},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrose: Fix NULL pointer dereference in rose_send_frame()\n\nThe syzkaller reported an issue:\n\nKASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387]\nCPU: 0 PID: 4069 Comm: kworker/0:15 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\nWorkqueue: rcu_gp srcu_invoke_callbacks\nRIP: 0010:rose_send_frame+0x1dd/0x2f0 net/rose/rose_link.c:101\nCall Trace:\n \u003cIRQ\u003e\n rose_transmit_clear_request+0x1d5/0x290 net/rose/rose_link.c:255\n rose_rx_call_request+0x4c0/0x1bc0 net/rose/af_rose.c:1009\n rose_loopback_timer+0x19e/0x590 net/rose/rose_loopback.c:111\n call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474\n expire_timers kernel/time/timer.c:1519 [inline]\n __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790\n __run_timers kernel/time/timer.c:1768 [inline]\n run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803\n __do_softirq+0x1d0/0x9c8 kernel/softirq.c:571\n [...]\n \u003c/IRQ\u003e\n\nIt triggers NULL pointer dereference when \u0027neigh-\u003edev-\u003edev_addr\u0027 is\ncalled in the rose_send_frame(). It\u0027s the first occurrence of the\n`neigh` is in rose_loopback_timer() as `rose_loopback_neigh\u0027, and\nthe \u0027dev\u0027 in \u0027rose_loopback_neigh\u0027 is initialized sa nullptr.\n\nIt had been fixed by commit 3b3fd068c56e3fbea30090859216a368398e39bf\n(\"rose: Fix Null pointer dereference in rose_send_frame()\") ever.\nBut it\u0027s introduced by commit 3c53cd65dece47dd1f9d3a809f32e59d1d87b2b8\n(\"rose: check NULL rose_loopback_neigh-\u003eloopback\") again.\n\nWe fix it by add NULL check in rose_transmit_clear_request(). When\nthe \u0027dev\u0027 in \u0027neigh\u0027 is NULL, we don\u0027t reply the request and just\nclear it.\n\nsyzkaller don\u0027t provide repro, and I provide a syz repro like:\nr0 = syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2)\nioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, \u0026(0x7f0000000180)={\u0027rose0\\x00\u0027, 0x201})\nr1 = syz_init_net_socket$rose(0xb, 0x5, 0x0)\nbind$rose(r1, \u0026(0x7f00000000c0)=@full={0xb, @dev, @null, 0x0, [@null, @null, @netrom, @netrom, @default, @null]}, 0x40)\nconnect$rose(r1, \u0026(0x7f0000000240)=@short={0xb, @dev={0xbb, 0xbb, 0xbb, 0x1, 0x0}, @remote={0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x1}, 0x1, @netrom={0xbb, 0xbb, 0xbb, 0xbb, 0xbb, 0x0, 0x0}}, 0x1c)"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T15:23:13.168Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/01b9c68c121847d05a4ccef68244dadf82bfa331"
},
{
"url": "https://git.kernel.org/stable/c/bbc03d74e641e824754443b908454ca9e203773e"
},
{
"url": "https://git.kernel.org/stable/c/5b46adfbee1e429f33b10a88d6c00fa88f3d6c77"
},
{
"url": "https://git.kernel.org/stable/c/b13be5e852b03f376058027e462fad4230240891"
},
{
"url": "https://git.kernel.org/stable/c/f06186e5271b980bac03f5c97276ed0146ddc9b0"
},
{
"url": "https://git.kernel.org/stable/c/3e2129c67daca21043a26575108f6286c85e71f6"
},
{
"url": "https://git.kernel.org/stable/c/a601e5eded33bb88b8a42743db8fef3ad41dd97e"
},
{
"url": "https://git.kernel.org/stable/c/e97c089d7a49f67027395ddf70bf327eeac2611e"
}
],
"title": "rose: Fix NULL pointer dereference in rose_send_frame()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-49916",
"datePublished": "2025-05-01T14:10:56.851Z",
"dateReserved": "2025-05-01T14:05:17.251Z",
"dateUpdated": "2026-05-23T15:23:13.168Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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