CVE-2022-49959
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49959
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49959.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49959
- Downstream
- Published
- 2025-06-18T11:00:20Z
- Modified
- 2025-10-16T02:15:53.930525Z
- Summary
- openvswitch: fix memory leak at failed datapath creation
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
openvswitch: fix memory leak at failed datapath creation
ovsdpcmdnew()->ovsdpchange()->ovsdpsetupcallportids() allocates array via kmalloc. If for some reason newvport() fails during ovsdpcmdnew() dp->upcallportids must be freed. Add missing kfree.
Kmemleak example: unreferenced object 0xffff88800c382500 (size 64): comm "dumpstate", pid 323, jiffies 4294955418 (age 104.347s) hex dump (first 32 bytes): 5e c2 79 e4 1f 7a 38 c7 09 21 38 0c 80 88 ff ff ^.y..z8..!8..... 03 00 00 00 0a 00 00 00 14 00 00 00 28 00 00 00 ............(... backtrace: [<0000000071bebc9f>] ovsdpsetupcallportids+0x38/0xa0 [<000000000187d8bd>] ovsdpchange+0x63/0xe0 [<000000002397e446>] ovsdpcmdnew+0x1f0/0x380 [<00000000aa06f36e>] genlfamilyrcvmsgdoit+0xea/0x150 [<000000008f583bc4>] genlrcvmsg+0xdc/0x1e0 [<00000000fa10e377>] netlinkrcvskb+0x50/0x100 [<000000004959cece>] genlrcv+0x24/0x40 [<000000004699ac7f>] netlinkunicast+0x23e/0x360 [<00000000c153573e>] netlinksendmsg+0x24e/0x4b0 [<000000006f4aa380>] socksendmsg+0x62/0x70 [<00000000d0068654>] _syssendmsg+0x230/0x270 [<0000000012dacf7d>] syssendmsg+0x88/0xd0 [<0000000011776020>] _syssendmsg+0x59/0xa0 [<000000002e8f2dc1>] dosyscall64+0x3b/0x90 [<000000003243e7cb>] entrySYSCALL64afterhwframe+0x63/0xcd
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb83d23a2a38b1770da0491257ae81d52307f7816Fixedca54b2bfaab385778e55a9fd33f6c31e7f743b48
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb83d23a2a38b1770da0491257ae81d52307f7816Fixedc0c1c0241917459644326a1a3102207c871ae159
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb83d23a2a38b1770da0491257ae81d52307f7816Fixeda87406f4adee9c53b311d8a1ba2849c69e29a6d0