CVE-2021-47344

Summary

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

media: zr364xx: fix memory leak in zr364xx_start_readpipe

syzbot reported memory leak in zr364xx driver. The problem was in non-freed urb in case of usb_submit_urb() fail.

backtrace: [<ffffffff82baedf6>] kmalloc include/linux/slab.h:561 [inline] [<ffffffff82baedf6>] usb_alloc_urb+0x66/0xe0 drivers/usb/core/urb.c:74 [<ffffffff82f7cce8>] zr364xx_start_readpipe+0x78/0x130 drivers/media/usb/zr364xx/zr364xx.c:1022 [<ffffffff84251dfc>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1383 [inline] [<ffffffff84251dfc>] zr364xx_probe+0x6a3/0x851 drivers/media/usb/zr364xx/zr364xx.c:1516 [<ffffffff82bb6507>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff826018a9>] really_probe+0x159/0x500 drivers/base/dd.c:576

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < c57b2bd3247925e253729dce283d6bf6abc9339daffected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < bbc80a972a3c5d7eba3f6c9c07af8fea42f5c513affected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < b0633051a6cb24186ff04ce1af99c7de18c1987eaffected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < 021c294dff030f3ba38eb81e400ba123db32ecbcaffected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < 0edd6759167295ea9969e89283b81017b4c688aaaffected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < c57bfd8000d7677bf435873b440eec0c47f73a08affected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < 5f3f81f1c96b501d180021c23c25e9f48eaab235affected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < d69b39d89f362cfeeb54a68690768d0d257b2c8faffected
LinuxLinuxccbf035ae5de4c535160fc99f73feb44cc55b534 < 0a045eac8d0427b64577a24d74bb8347c905ac65affected
LinuxLinux2.6.32affected
LinuxLinux0 < 2.6.32unaffected
LinuxLinux4.4.276 <= 4.4.*unaffected
LinuxLinux4.9.276 <= 4.9.*unaffected
LinuxLinux4.14.240 <= 4.14.*unaffected
LinuxLinux4.19.198 <= 4.19.*unaffected
LinuxLinux5.4.133 <= 5.4.*unaffected
LinuxLinux5.10.51 <= 5.10.*unaffected
LinuxLinux5.12.18 <= 5.12.*unaffected
LinuxLinux5.13.3 <= 5.13.*unaffected
LinuxLinux5.14 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References