CVE-2024-26882

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-26882
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26882.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-26882
Related
Published
2024-04-17T11:15:10Z
Modified
2024-09-18T03:26:07.121869Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

net: iptunnel: make sure to pull inner header in iptunnel_rcv()

Apply the same fix than ones found in :

8d975c15c0cd ("ip6tunnel: make sure to pull inner header in _ip6tnlrcv()") 1ca1ba465e55 ("geneve: make sure to pull inner header in geneve_rx()")

We have to save skb->networkheader in a temporary variable in order to be able to recompute the networkheader pointer after a pskbinetmay_pull() call.

pskbinetmay_pull() makes sure the needed headers are in skb->head.

syzbot reported: BUG: KMSAN: uninit-value in _INETECNdecapsulate include/net/inetecn.h:253 [inline] BUG: KMSAN: uninit-value in INETECNdecapsulate include/net/inetecn.h:275 [inline] BUG: KMSAN: uninit-value in IPECNdecapsulate include/net/inetecn.h:302 [inline] BUG: KMSAN: uninit-value in iptunnelrcv+0xed9/0x2ed0 net/ipv4/iptunnel.c:409 _INETECNdecapsulate include/net/inetecn.h:253 [inline] INETECNdecapsulate include/net/inetecn.h:275 [inline] IPECNdecapsulate include/net/inetecn.h:302 [inline] iptunnelrcv+0xed9/0x2ed0 net/ipv4/iptunnel.c:409 _ipgrercv+0x9bc/0xbc0 net/ipv4/ipgre.c:389 ipgrercv net/ipv4/ipgre.c:411 [inline] grercv+0x423/0x19f0 net/ipv4/ipgre.c:447 grercv+0x2a4/0x390 net/ipv4/gredemux.c:163 ipprotocoldeliverrcu+0x264/0x1300 net/ipv4/ipinput.c:205 iplocaldeliverfinish+0x2b8/0x440 net/ipv4/ipinput.c:233 NFHOOK include/linux/netfilter.h:314 [inline] iplocaldeliver+0x21f/0x490 net/ipv4/ipinput.c:254 dstinput include/net/dst.h:461 [inline] iprcvfinish net/ipv4/ipinput.c:449 [inline] NFHOOK include/linux/netfilter.h:314 [inline] iprcv+0x46f/0x760 net/ipv4/ipinput.c:569 _netifreceiveskbonecore net/core/dev.c:5534 [inline] _netifreceiveskb+0x1a6/0x5a0 net/core/dev.c:5648 netifreceiveskbinternal net/core/dev.c:5734 [inline] netifreceiveskb+0x58/0x660 net/core/dev.c:5793 tunrxbatched+0x3ee/0x980 drivers/net/tun.c:1556 tungetuser+0x53b9/0x66e0 drivers/net/tun.c:2009 tunchrwriteiter+0x3af/0x5d0 drivers/net/tun.c:2055 callwriteiter include/linux/fs.h:2087 [inline] newsyncwrite fs/readwrite.c:497 [inline] vfswrite+0xb6b/0x1520 fs/readwrite.c:590 ksyswrite+0x20f/0x4c0 fs/readwrite.c:643 _dosyswrite fs/readwrite.c:655 [inline] _sesyswrite fs/readwrite.c:652 [inline] _x64syswrite+0x93/0xd0 fs/readwrite.c:652 dosyscallx64 arch/x86/entry/common.c:52 [inline] dosyscall64+0xcf/0x1e0 arch/x86/entry/common.c:83 entrySYSCALL64after_hwframe+0x63/0x6b

Uninit was created at: _allocpages+0x9a6/0xe00 mm/pagealloc.c:4590 allocpagesmpol+0x62b/0x9d0 mm/mempolicy.c:2133 allocpages+0x1be/0x1e0 mm/mempolicy.c:2204 skbpagefragrefill+0x2bf/0x7c0 net/core/sock.c:2909 tunbuildskb drivers/net/tun.c:1686 [inline] tungetuser+0xe0a/0x66e0 drivers/net/tun.c:1826 tunchrwriteiter+0x3af/0x5d0 drivers/net/tun.c:2055 callwriteiter include/linux/fs.h:2087 [inline] newsyncwrite fs/readwrite.c:497 [inline] vfswrite+0xb6b/0x1520 fs/readwrite.c:590 ksyswrite+0x20f/0x4c0 fs/readwrite.c:643 _dosyswrite fs/readwrite.c:655 [inline] _sesyswrite fs/readwrite.c:652 [inline] _x64syswrite+0x93/0xd0 fs/readwrite.c:652 dosyscallx64 arch/x86/entry/common.c:52 [inline] dosyscall64+0xcf/0x1e0 arch/x86/entry/common.c:83 entrySYSCALL64after_hwframe+0x63/0x6b

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.10.216-1

Affected versions

5.*

5.10.46-4
5.10.46-5
5.10.70-1~bpo10+1
5.10.70-1
5.10.84-1
5.10.92-1~bpo10+1
5.10.92-1
5.10.92-2
5.10.103-1~bpo10+1
5.10.103-1
5.10.106-1
5.10.113-1
5.10.120-1~bpo10+1
5.10.120-1
5.10.127-1
5.10.127-2~bpo10+1
5.10.127-2
5.10.136-1
5.10.140-1
5.10.148-1
5.10.149-1
5.10.149-2
5.10.158-1
5.10.158-2
5.10.162-1
5.10.178-1
5.10.178-2
5.10.178-3
5.10.179-1
5.10.179-2
5.10.179-3
5.10.179-4
5.10.179-5
5.10.191-1
5.10.197-1
5.10.205-1
5.10.205-2
5.10.209-1
5.10.209-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.85-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.7.12-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1
6.1.94-1
6.1.98-1
6.1.99-1
6.1.106-1
6.1.106-2
6.1.106-3
6.3.1-1~exp1
6.3.2-1~exp1
6.3.4-1~exp1
6.3.5-1~exp1
6.3.7-1~bpo12+1
6.3.7-1
6.3.11-1
6.4~rc6-1~exp1
6.4~rc7-1~exp1
6.4.1-1~exp1
6.4.4-1~bpo12+1
6.4.4-1
6.4.4-2
6.4.4-3~bpo12+1
6.4.4-3
6.4.11-1
6.4.13-1
6.5~rc4-1~exp1
6.5~rc6-1~exp1
6.5~rc7-1~exp1
6.5.1-1~exp1
6.5.3-1~bpo12+1
6.5.3-1
6.5.6-1
6.5.8-1
6.5.10-1~bpo12+1
6.5.10-1
6.5.13-1
6.6.3-1~exp1
6.6.4-1~exp1
6.6.7-1~exp1
6.6.8-1
6.6.9-1
6.6.11-1
6.6.13-1~bpo12+1
6.6.13-1
6.6.15-1
6.6.15-2
6.7-1~exp1
6.7.1-1~exp1
6.7.4-1~exp1
6.7.7-1
6.7.9-1
6.7.9-2
6.7.12-1~bpo12+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}