CVE-2024-35888

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-35888
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-35888.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-35888
Related
Published
2024-05-19T09:15:09Z
Modified
2024-11-06T17:59:23.074330Z
Summary
[none]
Details

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

erspan: make sure erspanbasehdr is present in skb->head

syzbot reported a problem in ip6erspan_rcv() [1]

Issue is that ip6erspanrcv() (and erspanrcv()) no longer make sure erspanbasehdr is present in skb linear part (skb->head) before getting @ver field from it.

Add the missing pskbmaypull() calls.

v2: Reload iph pointer in erspanrcv() after pskbmay_pull() because skb->head might have changed.

[1]

BUG: KMSAN: uninit-value in pskbmaypullreason include/linux/skbuff.h:2742 [inline] BUG: KMSAN: uninit-value in pskbmaypull include/linux/skbuff.h:2756 [inline] BUG: KMSAN: uninit-value in ip6erspanrcv net/ipv6/ip6gre.c:541 [inline] BUG: KMSAN: uninit-value in grercv+0x11f8/0x1930 net/ipv6/ip6gre.c:610 pskbmaypullreason include/linux/skbuff.h:2742 [inline] pskbmaypull include/linux/skbuff.h:2756 [inline] ip6erspanrcv net/ipv6/ip6gre.c:541 [inline] grercv+0x11f8/0x1930 net/ipv6/ip6gre.c:610 ip6protocoldeliverrcu+0x1d4c/0x2ca0 net/ipv6/ip6input.c:438 ip6inputfinish net/ipv6/ip6input.c:483 [inline] NFHOOK include/linux/netfilter.h:314 [inline] ip6input+0x15d/0x430 net/ipv6/ip6input.c:492 ip6mcinput+0xa7e/0xc80 net/ipv6/ip6input.c:586 dstinput include/net/dst.h:460 [inline] ip6rcvfinish+0x955/0x970 net/ipv6/ip6input.c:79 NFHOOK include/linux/netfilter.h:314 [inline] ipv6rcv+0xde/0x390 net/ipv6/ip6input.c:310 _netifreceiveskbonecore net/core/dev.c:5538 [inline] _netifreceiveskb+0x1da/0xa00 net/core/dev.c:5652 netifreceiveskbinternal net/core/dev.c:5738 [inline] netifreceiveskb+0x58/0x660 net/core/dev.c:5798 tunrxbatched+0x3ee/0x980 drivers/net/tun.c:1549 tungetuser+0x5566/0x69e0 drivers/net/tun.c:2002 tunchrwriteiter+0x3af/0x5d0 drivers/net/tun.c:2048 callwriteiter include/linux/fs.h:2108 [inline] newsyncwrite fs/readwrite.c:497 [inline] vfswrite+0xb63/0x1520 fs/readwrite.c:590 ksyswrite+0x20f/0x4c0 fs/readwrite.c:643 _dosyswrite fs/readwrite.c:655 [inline] _sesyswrite fs/readwrite.c:652 [inline] _x64syswrite+0x93/0xe0 fs/readwrite.c:652 dosyscall64+0xd5/0x1f0 entrySYSCALL64after_hwframe+0x6d/0x75

Uninit was created at: slabpostallochook mm/slub.c:3804 [inline] slaballocnode mm/slub.c:3845 [inline] kmemcacheallocnode+0x613/0xc50 mm/slub.c:3888 kmallocreserve+0x13d/0x4a0 net/core/skbuff.c:577 _allocskb+0x35b/0x7a0 net/core/skbuff.c:668 allocskb include/linux/skbuff.h:1318 [inline] allocskbwithfrags+0xc8/0xbf0 net/core/skbuff.c:6504 sockallocsendpskb+0xa81/0xbf0 net/core/sock.c:2795 tunallocskb drivers/net/tun.c:1525 [inline] tungetuser+0x209a/0x69e0 drivers/net/tun.c:1846 tunchrwriteiter+0x3af/0x5d0 drivers/net/tun.c:2048 callwriteiter include/linux/fs.h:2108 [inline] newsyncwrite fs/readwrite.c:497 [inline] vfswrite+0xb63/0x1520 fs/readwrite.c:590 ksyswrite+0x20f/0x4c0 fs/readwrite.c:643 _dosyswrite fs/readwrite.c:655 [inline] _sesyswrite fs/readwrite.c:652 [inline] _x64syswrite+0x93/0xe0 fs/readwrite.c:652 dosyscall64+0xd5/0x1f0 entrySYSCALL64afterhwframe+0x6d/0x75

CPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0

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
6.8.9-1

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
6.1.112-1
6.1.115-1
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
6.7.12-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}