CVE-2024-26961

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-26961
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26961.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-26961
Related
Published
2024-05-01T06:15:12Z
Modified
2024-11-05T11:50:05.886115Z
Summary
[none]
Details

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

mac802154: fix llsec key resources release in mac802154llseckey_del

mac802154llseckeydel() can free resources of a key directly without following the RCU rules for waiting before the end of a grace period. This may lead to use-after-free in case llseclookup_key() is traversing the list of keys in parallel with a key deletion:

refcountt: addition on 0; use-after-free. WARNING: CPU: 4 PID: 16000 at lib/refcount.c:25 refcountwarnsaturate+0x162/0x2a0 Modules linked in: CPU: 4 PID: 16000 Comm: wpan-ping Not tainted 6.7.0 #19 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:refcountwarnsaturate+0x162/0x2a0 Call Trace: <TASK> llseclookupkey.isra.0+0x890/0x9e0 mac802154llsecencrypt+0x30c/0x9c0 ieee802154subifstartxmit+0x24/0x1e0 devhardstartxmit+0x13e/0x690 schdirectxmit+0x2ae/0xbc0 _devqueuexmit+0x11dd/0x3c20 dgramsendmsg+0x90b/0xd60 _syssendto+0x466/0x4c0 _x64syssendto+0xe0/0x1c0 dosyscall64+0x45/0xf0 entrySYSCALL64afterhwframe+0x6e/0x76

Also, ieee802154llseckeyentry structures are not freed by mac802154llseckeydel():

unreferenced object 0xffff8880613b6980 (size 64): comm "iwpan", pid 2176, jiffies 4294761134 (age 60.475s) hex dump (first 32 bytes): 78 0d 8f 18 80 88 ff ff 22 01 00 00 00 00 ad de x......."....... 00 00 00 00 00 00 00 00 03 00 cd ab 00 00 00 00 ................ backtrace: [<ffffffff81dcfa62>] kmemcacheallocnode+0x1e2/0x2d0 [<ffffffff81c43865>] kmalloctrace+0x25/0xc0 [<ffffffff88968b09>] mac802154llseckeyadd+0xac9/0xcf0 [<ffffffff8896e41a>] ieee802154addllseckey+0x5a/0x80 [<ffffffff8892adc6>] nl802154addllseckey+0x426/0x5b0 [<ffffffff86ff293e>] genlfamilyrcvmsgdoit+0x1fe/0x2f0 [<ffffffff86ff46d1>] genlrcvmsg+0x531/0x7d0 [<ffffffff86fee7a9>] netlinkrcvskb+0x169/0x440 [<ffffffff86ff1d88>] genlrcv+0x28/0x40 [<ffffffff86fec15c>] netlinkunicast+0x53c/0x820 [<ffffffff86fecd8b>] netlinksendmsg+0x93b/0xe60 [<ffffffff86b91b35>] syssendmsg+0xac5/0xca0 [<ffffffff86b9c3dd>] _syssendmsg+0x11d/0x1c0 [<ffffffff86b9c65a>] _syssendmsg+0xfa/0x1d0 [<ffffffff88eadbf5>] dosyscall64+0x45/0xf0 [<ffffffff890000ea>] entrySYSCALL64afterhwframe+0x6e/0x76

Handle the proper resource release in the RCU callback function mac802154llseckeydelrcu().

Note that if llseclookupkey() finds a key, it gets a refcount via llseckeyget() and locally copies key id from keyentry (which is a list element). So it's safe to call llseckey_put() and free the list entry after the RCU grace period elapses.

Found by Linux Verification Center (linuxtesting.org).

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
6.1.112-1
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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}