CVE-2022-48779— net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
Affected Version Matrix 6
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I. Basic Information for CVE-2022-48779
Vulnerability Information
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Vulnerability Title
net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: fix use-after-free in ocelot_vlan_del() ocelot_vlan_member_del() will free the struct ocelot_bridge_vlan, so if this is the same as the port's pvid_vlan which we access afterwards, what we're accessing is freed memory. Fix the bug by determining whether to clear ocelot_port->pvid_vlan prior to calling ocelot_vlan_member_del().
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于net:mscc:ocelot模块中发现使用后释放问题。在ocelot_vlan_del函数中，ocelot_vlan_member_del函数会释放struct ocelot_bridge_vlan，但如果这与端口的pvid_vlan相同，则后续访问的是已释放的内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-48779
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Other References for CVE-2022-48779 (1)
Same Patch Batch · Linux · 2024-07-16 · 98 CVEs total
| CVE-2022-48832 | audit: don't deref the syscall args when checking the openat2 open_how::flags | |
| CVE-2022-48826 | drm/vc4: Fix deadlock on DSI device attach error | |
| CVE-2022-48822 | usb: f_fs: Fix use-after-free for epfile | |
| CVE-2022-48821 | misc: fastrpc: avoid double fput() on failed usercopy | |
| CVE-2022-48819 | tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case | |
| CVE-2022-48820 | phy: stm32: fix a refcount leak in stm32_usbphyc_pll_enable() | |
| CVE-2022-48818 | net: dsa: mv88e6xxx: don't use devres for mdiobus | |
| CVE-2022-48823 | scsi: qedf: Fix refcount issue when LOGO is received during TMF | |
| CVE-2022-48830 | can: isotp: fix potential CAN frame reception race in isotp_rcv() | |
| CVE-2022-48831 | ima: fix reference leak in asymmetric_verify() | |
| CVE-2022-48828 | NFSD: Fix ia_size underflow | |
| CVE-2022-48834 | usb: usbtmc: Fix bug in pipe direction for control transfers | |
| CVE-2022-48833 | btrfs: skip reserved bytes warning on unmount after log cleanup failure | |
| CVE-2022-48835 | scsi: mpt3sas: Page fault in reply q processing | |
| CVE-2022-48837 | usb: gadget: rndis: prevent integer overflow in rndis_set_response() | |
| CVE-2022-48836 | Input: aiptek - properly check endpoint type | |
| CVE-2022-48838 | usb: gadget: Fix use-after-free bug by not setting udc->dev.driver | |
| CVE-2022-48839 | net/packet: fix slab-out-of-bounds access in packet_recvmsg() | |
| CVE-2022-48840 | iavf: Fix hang during reboot/shutdown | |
| CVE-2022-48842 | ice: Fix race condition during interface enslave |
Showing top 20 of 98 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
Same vendor: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects
V. Comments for CVE-2022-48779
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