CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
12181 vulnerabilities reference this CWE, most recent first.
GHSA-9WW5-CG37-M53M
Vulnerability from github – Published: 2026-10-13 21:36 – Updated: 2026-10-13 21:36Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-85945"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-13T19:21:21Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-9ww5-cg37-m53m",
"modified": "2026-10-13T21:36:25Z",
"published": "2026-10-13T21:36:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85945"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85945"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9WWH-6P2J-F92G
Vulnerability from github – Published: 2022-05-13 01:37 – Updated: 2022-05-13 01:37This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 8.3.1.21155. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the alignment attribute of Field objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-5094.
{
"affected": [],
"aliases": [
"CVE-2017-16577"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-12-20T14:29:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 8.3.1.21155. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the alignment attribute of Field objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code under the context of the current process. Was ZDI-CAN-5094.",
"id": "GHSA-9wwh-6p2j-f92g",
"modified": "2022-05-13T01:37:26Z",
"published": "2022-05-13T01:37:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16577"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://zerodayinitiative.com/advisories/ZDI-17-888"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9WX4-C2W3-PHHG
Vulnerability from github – Published: 2024-05-03 03:31 – Updated: 2024-05-03 03:31PDF-XChange Editor EMF File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of EMF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21877.
{
"affected": [],
"aliases": [
"CVE-2023-42080"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-03T03:15:44Z",
"severity": "HIGH"
},
"details": "PDF-XChange Editor EMF File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of EMF files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-21877.",
"id": "GHSA-9wx4-c2w3-phhg",
"modified": "2024-05-03T03:31:01Z",
"published": "2024-05-03T03:31:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-42080"
},
{
"type": "WEB",
"url": "https://www.tracker-software.com/support/security-bulletins.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-23-1382"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9WX6-GP73-QG3J
Vulnerability from github – Published: 2026-06-09 18:30 – Updated: 2026-06-09 18:30Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.
{
"affected": [],
"aliases": [
"CVE-2026-42987"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T17:17:14Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.",
"id": "GHSA-9wx6-gp73-qg3j",
"modified": "2026-06-09T18:30:46Z",
"published": "2026-06-09T18:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42987"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42987"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9X2H-WWHR-53VP
Vulnerability from github – Published: 2022-01-15 00:01 – Updated: 2022-03-26 00:01Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2021-44705"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-14T20:15:00Z",
"severity": "HIGH"
},
"details": "Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-9x2h-wwhr-53vp",
"modified": "2022-03-26T00:01:07Z",
"published": "2022-01-15T00:01:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44705"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb22-01.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-22-540"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9X3W-QRQC-6H9J
Vulnerability from github – Published: 2022-05-24 16:46 – Updated: 2024-04-04 00:46Adobe Bridge CC versions 9.0.2 have an use after free vulnerability. Successful exploitation could lead to information disclosure.
{
"affected": [],
"aliases": [
"CVE-2019-7136"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-05-23T16:29:00Z",
"severity": "MODERATE"
},
"details": "Adobe Bridge CC versions 9.0.2 have an use after free vulnerability. Successful exploitation could lead to information disclosure.",
"id": "GHSA-9x3w-qrqc-6h9j",
"modified": "2024-04-04T00:46:17Z",
"published": "2022-05-24T16:46:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-7136"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/bridge/apsb19-25.html"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-19-354"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-9X4X-QWHQ-G8F7
Vulnerability from github – Published: 2024-02-27 12:31 – Updated: 2024-04-10 21:30In the Linux kernel, the following vulnerability has been resolved:
net: fix use-after-free in tw_timer_handler
A real world panic issue was found as follow in Linux 5.4.
BUG: unable to handle page fault for address: ffffde49a863de28
PGD 7e6fe62067 P4D 7e6fe62067 PUD 7e6fe63067 PMD f51e064067 PTE 0
RIP: 0010:tw_timer_handler+0x20/0x40
Call Trace:
<IRQ>
call_timer_fn+0x2b/0x120
run_timer_softirq+0x1ef/0x450
__do_softirq+0x10d/0x2b8
irq_exit+0xc7/0xd0
smp_apic_timer_interrupt+0x68/0x120
apic_timer_interrupt+0xf/0x20
This issue was also reported since 2017 in the thread [1], unfortunately, the issue was still can be reproduced after fixing DCCP.
The ipv4_mib_exit_net is called before tcp_sk_exit_batch when a net namespace is destroyed since tcp_sk_ops is registered befrore ipv4_mib_ops, which means tcp_sk_ops is in the front of ipv4_mib_ops in the list of pernet_list. There will be a use-after-free on net->mib.net_statistics in tw_timer_handler after ipv4_mib_exit_net if there are some inflight time-wait timers.
This bug is not introduced by commit f2bf415cfed7 ("mib: add net to NET_ADD_STATS_BH") since the net_statistics is a global variable instead of dynamic allocation and freeing. Actually, commit 61a7e26028b9 ("mib: put net statistics on struct net") introduces the bug since it put net statistics on struct net and free it when net namespace is destroyed.
Moving init_ipv4_mibs() to the front of tcp_init() to fix this bug and replace pr_crit() with panic() since continuing is meaningless when init_ipv4_mibs() fails.
[1] https://groups.google.com/g/syzkaller/c/p1tn-_Kc6l4/m/smuL_FMAAgAJ?pli=1
{
"affected": [],
"aliases": [
"CVE-2021-46936"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-27T10:15:08Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix use-after-free in tw_timer_handler\n\nA real world panic issue was found as follow in Linux 5.4.\n\n BUG: unable to handle page fault for address: ffffde49a863de28\n PGD 7e6fe62067 P4D 7e6fe62067 PUD 7e6fe63067 PMD f51e064067 PTE 0\n RIP: 0010:tw_timer_handler+0x20/0x40\n Call Trace:\n \u003cIRQ\u003e\n call_timer_fn+0x2b/0x120\n run_timer_softirq+0x1ef/0x450\n __do_softirq+0x10d/0x2b8\n irq_exit+0xc7/0xd0\n smp_apic_timer_interrupt+0x68/0x120\n apic_timer_interrupt+0xf/0x20\n\nThis issue was also reported since 2017 in the thread [1],\nunfortunately, the issue was still can be reproduced after fixing\nDCCP.\n\nThe ipv4_mib_exit_net is called before tcp_sk_exit_batch when a net\nnamespace is destroyed since tcp_sk_ops is registered befrore\nipv4_mib_ops, which means tcp_sk_ops is in the front of ipv4_mib_ops\nin the list of pernet_list. There will be a use-after-free on\nnet-\u003emib.net_statistics in tw_timer_handler after ipv4_mib_exit_net\nif there are some inflight time-wait timers.\n\nThis bug is not introduced by commit f2bf415cfed7 (\"mib: add net to\nNET_ADD_STATS_BH\") since the net_statistics is a global variable\ninstead of dynamic allocation and freeing. Actually, commit\n61a7e26028b9 (\"mib: put net statistics on struct net\") introduces\nthe bug since it put net statistics on struct net and free it when\nnet namespace is destroyed.\n\nMoving init_ipv4_mibs() to the front of tcp_init() to fix this bug\nand replace pr_crit() with panic() since continuing is meaningless\nwhen init_ipv4_mibs() fails.\n\n[1] https://groups.google.com/g/syzkaller/c/p1tn-_Kc6l4/m/smuL_FMAAgAJ?pli=1",
"id": "GHSA-9x4x-qwhq-g8f7",
"modified": "2024-04-10T21:30:28Z",
"published": "2024-02-27T12:31:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46936"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/08eacbd141e2495d2fcdde84358a06c4f95cbb13"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/15579e1301f856ad9385d720c9267c11032a5022"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2386e81a1d277f540e1285565c9d41d531bb69d4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5c2fe20ad37ff56070ae0acb34152333976929b4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a8e1944b44f94f5c5f530e434c5eaee787254566"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e22e45fc9e41bf9fcc1e92cfb78eb92786728ef0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e73164e89d1be561228a4534e1091369ee4ba41a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fe5838c22b986c1190f1dce9aa09bf6a491c1a69"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9X54-F6PR-MC3H
Vulnerability from github – Published: 2022-05-13 01:27 – Updated: 2022-05-13 01:27Use-after-free vulnerability in Google Chrome before 18.0.1025.151 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to style-application commands.
{
"affected": [],
"aliases": [
"CVE-2011-3075"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2012-04-05T22:02:00Z",
"severity": "MODERATE"
},
"details": "Use-after-free vulnerability in Google Chrome before 18.0.1025.151 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to style-application commands.",
"id": "GHSA-9x54-f6pr-mc3h",
"modified": "2022-05-13T01:27:23Z",
"published": "2022-05-13T01:27:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-3075"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/74635"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15141"
},
{
"type": "WEB",
"url": "http://code.google.com/p/chromium/issues/detail?id=119525"
},
{
"type": "WEB",
"url": "http://googlechromereleases.blogspot.com/2012/04/stable-and-beta-channel-updates.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2012/Jul/msg00000.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2012/Sep/msg00001.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2012/Sep/msg00003.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/48732"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/48749"
},
{
"type": "WEB",
"url": "http://security.gentoo.org/glsa/glsa-201204-03.xml"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT5400"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT5485"
},
{
"type": "WEB",
"url": "http://support.apple.com/kb/HT5503"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/52913"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1026892"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-9X88-7C3C-R34G
Vulnerability from github – Published: 2026-05-27 15:33 – Updated: 2026-10-15 03:35In the Linux kernel, the following vulnerability has been resolved:
net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
seg6_input_core() and rpl_input() call ip6_route_input() which sets a NOREF dst on the skb, then pass it to dst_cache_set_ip6() invoking dst_hold() unconditionally. On PREEMPT_RT, ksoftirqd is preemptible and a higher-priority task can release the underlying pcpu_rt between the lookup and the caching through a concurrent FIB lookup on a shared nexthop. Simplified race sequence:
ksoftirqd/X higher-prio task (same CPU X) ----------- -------------------------------- seg6_input_core(,skb)/rpl_input(skb) dst_cache_get() -> miss ip6_route_input(skb) -> ip6_pol_route(,skb,flags) [RT6_LOOKUP_F_DST_NOREF in flags] -> FIB lookup resolves fib6_nh [nhid=N route] -> rt6_make_pcpu_route() [creates pcpu_rt, refcount=1] pcpu_rt->sernum = fib6_sernum [fib6_sernum=W] -> cmpxchg(fib6_nh.rt6i_pcpu, NULL, pcpu_rt) [slot was empty, store succeeds] -> skb_dst_set_noref(skb, dst) [dst is pcpu_rt, refcount still 1]
rt_genid_bump_ipv6()
-> bumps fib6_sernum
[fib6_sernum from W to Z]
ip6_route_output()
-> ip6_pol_route()
-> FIB lookup resolves fib6_nh
[nhid=N]
-> rt6_get_pcpu_route()
pcpu_rt->sernum != fib6_sernum
[W <> Z, stale]
-> prev = xchg(rt6i_pcpu, NULL)
-> dst_release(prev)
[prev is pcpu_rt,
refcount 1->0, dead]
dst = skb_dst(skb)
[dst is the dead pcpu_rt]
dst_cache_set_ip6(dst)
-> dst_hold() on dead dst
-> WARN / use-after-free
For the race to occur, ksoftirqd must be preemptible (PREEMPT_RT without PREEMPT_RT_NEEDS_BH_LOCK) and a concurrent task must be able to release the pcpu_rt. Shared nexthop objects provide such a path, as two routes pointing to the same nhid share the same fib6_nh and its rt6i_pcpu entry.
Fix seg6_input_core() and rpl_input() by calling skb_dst_force() after ip6_route_input() to force the NOREF dst into a refcounted one before caching. The output path is not affected as ip6_route_output() already returns a refcounted dst.
{
"affected": [],
"aliases": [
"CVE-2026-46099"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-911"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-27T14:17:31Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels\n\nseg6_input_core() and rpl_input() call ip6_route_input() which sets a\nNOREF dst on the skb, then pass it to dst_cache_set_ip6() invoking\ndst_hold() unconditionally.\nOn PREEMPT_RT, ksoftirqd is preemptible and a higher-priority task can\nrelease the underlying pcpu_rt between the lookup and the caching\nthrough a concurrent FIB lookup on a shared nexthop.\nSimplified race sequence:\n\n ksoftirqd/X higher-prio task (same CPU X)\n ----------- --------------------------------\n seg6_input_core(,skb)/rpl_input(skb)\n dst_cache_get()\n -\u003e miss\n ip6_route_input(skb)\n -\u003e ip6_pol_route(,skb,flags)\n [RT6_LOOKUP_F_DST_NOREF in flags]\n -\u003e FIB lookup resolves fib6_nh\n [nhid=N route]\n -\u003e rt6_make_pcpu_route()\n [creates pcpu_rt, refcount=1]\n pcpu_rt-\u003esernum = fib6_sernum\n [fib6_sernum=W]\n -\u003e cmpxchg(fib6_nh.rt6i_pcpu,\n NULL, pcpu_rt)\n [slot was empty, store succeeds]\n -\u003e skb_dst_set_noref(skb, dst)\n [dst is pcpu_rt, refcount still 1]\n\n rt_genid_bump_ipv6()\n -\u003e bumps fib6_sernum\n [fib6_sernum from W to Z]\n ip6_route_output()\n -\u003e ip6_pol_route()\n -\u003e FIB lookup resolves fib6_nh\n [nhid=N]\n -\u003e rt6_get_pcpu_route()\n pcpu_rt-\u003esernum != fib6_sernum\n [W \u003c\u003e Z, stale]\n -\u003e prev = xchg(rt6i_pcpu, NULL)\n -\u003e dst_release(prev)\n [prev is pcpu_rt,\n refcount 1-\u003e0, dead]\n\n dst = skb_dst(skb)\n [dst is the dead pcpu_rt]\n dst_cache_set_ip6(dst)\n -\u003e dst_hold() on dead dst\n -\u003e WARN / use-after-free\n\nFor the race to occur, ksoftirqd must be preemptible (PREEMPT_RT without\nPREEMPT_RT_NEEDS_BH_LOCK) and a concurrent task must be able to release\nthe pcpu_rt. Shared nexthop objects provide such a path, as two routes\npointing to the same nhid share the same fib6_nh and its rt6i_pcpu\nentry.\n\nFix seg6_input_core() and rpl_input() by calling skb_dst_force() after\nip6_route_input() to force the NOREF dst into a refcounted one before\ncaching.\nThe output path is not affected as ip6_route_output() already returns a\nrefcounted dst.",
"id": "GHSA-9x88-7c3c-r34g",
"modified": "2026-10-15T03:35:59Z",
"published": "2026-05-27T15:33:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46099"
},
{
"type": "WEB",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46099.json"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f9c52a6ba9780bd27e0bf4c044fd91c13c778b6e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b778b6d095421619c331fd2d7751143cd5387103"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b258b849a580285a1692e782ebc902b44c884a71"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9dd5481f960e337b81d7dfe429529495c1c481c0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6bd17925bd6866027a6555db17905b9fc073d38d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/52f9db67f8f35f436366cf4980b4f0a2583d0ef0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/51fef5a7c4d160839199e941929456ba21ddf73c"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481972"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-46099"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:65712"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:64767"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:62568"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:59663"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:59662"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:45114"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9X94-VH8X-VRHP
Vulnerability from github – Published: 2025-01-11 15:30 – Updated: 2025-11-03 21:32In the Linux kernel, the following vulnerability has been resolved:
drm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()
While receiving an MST up request message from one thread in drm_dp_mst_handle_up_req(), the MST topology could be removed from another thread via drm_dp_mst_topology_mgr_set_mst(false), freeing mst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL. This could lead to a NULL deref/use-after-free of mst_primary in drm_dp_mst_handle_up_req().
Avoid the above by holding a reference for mst_primary in drm_dp_mst_handle_up_req() while it's used.
v2: Fix kfreeing the request if getting an mst_primary reference fails.
{
"affected": [],
"aliases": [
"CVE-2024-57798"
],
"database_specific": {
"cwe_ids": [
"CWE-416",
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-11T13:15:29Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/dp_mst: Ensure mst_primary pointer is valid in drm_dp_mst_handle_up_req()\n\nWhile receiving an MST up request message from one thread in\ndrm_dp_mst_handle_up_req(), the MST topology could be removed from\nanother thread via drm_dp_mst_topology_mgr_set_mst(false), freeing\nmst_primary and setting drm_dp_mst_topology_mgr::mst_primary to NULL.\nThis could lead to a NULL deref/use-after-free of mst_primary in\ndrm_dp_mst_handle_up_req().\n\nAvoid the above by holding a reference for mst_primary in\ndrm_dp_mst_handle_up_req() while it\u0027s used.\n\nv2: Fix kfreeing the request if getting an mst_primary reference fails.",
"id": "GHSA-9x94-vh8x-vrhp",
"modified": "2025-11-03T21:32:07Z",
"published": "2025-01-11T15:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57798"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9735d40f5fde9970aa46e828ecc85c32571d58a2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ce55818b2d3a999f886af91679589e4644ff1dc8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e54b00086f7473dbda1a7d6fc47720ced157c6a8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f61b2e5e7821f868d6afc22382a66a30ee780ba0"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.