CVE-2025-21787

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-21787
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21787.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-21787
Downstream
Related
Published
2025-02-27T03:15:19Z
Modified
2025-07-29T11:19:08.415763Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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

team: better TEAMOPTIONTYPE_STRING validation

syzbot reported following splat [1]

Make sure user-provided data contains one nul byte.

[1] BUG: KMSAN: uninit-value in stringnocheck lib/vsprintf.c:633 [inline] BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714 stringnocheck lib/vsprintf.c:633 [inline] string+0x3ec/0x5f0 lib/vsprintf.c:714 vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843 requestmodule+0x252/0x9f0 kernel/module/kmod.c:149 teammodeget drivers/net/team/teamcore.c:480 [inline] teamchangemode drivers/net/team/teamcore.c:607 [inline] teammodeoptionset+0x437/0x970 drivers/net/team/teamcore.c:1401 teamoptionset drivers/net/team/teamcore.c:375 [inline] teamnloptionssetdoit+0x1339/0x1f90 drivers/net/team/teamcore.c:2662 genlfamilyrcvmsgdoit net/netlink/genetlink.c:1115 [inline] genlfamilyrcvmsg net/netlink/genetlink.c:1195 [inline] genlrcvmsg+0x1214/0x12c0 net/netlink/genetlink.c:1210 netlinkrcvskb+0x375/0x650 net/netlink/afnetlink.c:2543 genlrcv+0x40/0x60 net/netlink/genetlink.c:1219 netlinkunicastkernel net/netlink/afnetlink.c:1322 [inline] netlinkunicast+0xf52/0x1260 net/netlink/afnetlink.c:1348 netlinksendmsg+0x10da/0x11e0 net/netlink/afnetlink.c:1892 socksendmsgnosec net/socket.c:718 [inline] _socksendmsg+0x30f/0x380 net/socket.c:733 _syssendmsg+0x877/0xb60 net/socket.c:2573 _syssendmsg+0x28d/0x3c0 net/socket.c:2627 _syssendmsg net/socket.c:2659 [inline] _dosyssendmsg net/socket.c:2664 [inline] _sesyssendmsg net/socket.c:2662 [inline] _x64syssendmsg+0x212/0x3c0 net/socket.c:2662 x64syscall+0x2ed6/0x3c30 arch/x86/include/generated/asm/syscalls64.h:47 dosyscallx64 arch/x86/entry/common.c:52 [inline] dosyscall64+0xcd/0x1e0 arch/x86/entry/common.c:83 entrySYSCALL64afterhwframe+0x77/0x7f

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
5.10.237-1

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
5.10.216-1
5.10.218-1
5.10.221-1
5.10.223-1
5.10.226-1
5.10.234-1

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
6.1.129-1

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
6.1.119-1
6.1.123-1
6.1.124-1
6.1.128-1

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
6.12.16-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:11 / linux-6.1

Package

Name
linux-6.1
Purl
pkg:deb/debian/linux-6.1?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.129-1~deb11u1

Affected versions

6.*

6.1.106-3~deb11u1
6.1.106-3~deb11u2
6.1.106-3~deb11u3
6.1.112-1~deb11u1
6.1.119-1~deb11u1
6.1.128-1~deb11u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}