In the Linux kernel, the following vulnerability has been resolved:
misc/uss720: fix memory leak in uss720_probe
uss720_probe forgets to decrease the refcount of usbdev in uss720_probe.
Fix this by decreasing the refcount of usbdev by usb_put_dev.
BUG: memory leak
unreferenced object 0xffff888101113800 (size 2048):
comm “kworker/0:1”, pid 7, jiffies 4294956777 (age 28.870s)
hex dump (first 32 bytes):
ff ff ff ff 31 00 00 00 00 00 00 00 00 00 00 00 …1…
00 00 00 00 00 00 00 00 00 00 00 00 03 00 00 00 …
backtrace:
[<ffffffff82b8e822>] kmalloc include/linux/slab.h:554 [inline]
[<ffffffff82b8e822>] kzalloc include/linux/slab.h:684 [inline]
[<ffffffff82b8e822>] usb_alloc_dev+0x32/0x450 drivers/usb/core/usb.c:582
[<ffffffff82b98441>] hub_port_connect drivers/usb/core/hub.c:5129 [inline]
[<ffffffff82b98441>] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
[<ffffffff82b98441>] port_event drivers/usb/core/hub.c:5509 [inline]
[<ffffffff82b98441>] hub_event+0x1171/0x20c0 drivers/usb/core/hub.c:5591
[<ffffffff81259229>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2275
[<ffffffff81259b19>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2421
[<ffffffff81261228>] kthread+0x178/0x1b0 kernel/kthread.c:292
[<ffffffff8100227f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/usb/misc/uss720.c"
],
"versions": [
{
"version": "0f36163d3abe",
"lessThan": "5f46b2410db2",
"status": "affected",
"versionType": "git"
},
{
"version": "0f36163d3abe",
"lessThan": "7889c70e6173",
"status": "affected",
"versionType": "git"
},
{
"version": "0f36163d3abe",
"lessThan": "bcb30cc8f8be",
"status": "affected",
"versionType": "git"
},
{
"version": "0f36163d3abe",
"lessThan": "386918878ce4",
"status": "affected",
"versionType": "git"
},
{
"version": "0f36163d3abe",
"lessThan": "36b5ff1db1a4",
"status": "affected",
"versionType": "git"
},
{
"version": "0f36163d3abe",
"lessThan": "5394ae9d8c79",
"status": "affected",
"versionType": "git"
},
{
"version": "0f36163d3abe",
"lessThan": "a3c3face38cb",
"status": "affected",
"versionType": "git"
},
{
"version": "0f36163d3abe",
"lessThan": "dcb4b8ad6a44",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/usb/misc/uss720.c"
],
"versions": [
{
"version": "2.6.14",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.14",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.4.271",
"lessThanOrEqual": "4.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.9.271",
"lessThanOrEqual": "4.9.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.14.235",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.19.193",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.124",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.42",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.12.9",
"lessThanOrEqual": "5.12.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.13",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/36b5ff1db1a4ef4fdbc2bae364344279f033ad88
git.kernel.org/stable/c/386918878ce4cd676e4607233866e03c9399a46a
git.kernel.org/stable/c/5394ae9d8c7961dd93807fdf1b12a1dde96b0a55
git.kernel.org/stable/c/5f46b2410db2c8f26b8bb91b40deebf4ec184391
git.kernel.org/stable/c/7889c70e6173ef358f3cd7578db127a489035a42
git.kernel.org/stable/c/a3c3face38cb49932c62adcc1289914f1c742096
git.kernel.org/stable/c/bcb30cc8f8befcbdbcf7a016e4dfd4747c54a364
git.kernel.org/stable/c/dcb4b8ad6a448532d8b681b5d1a7036210b622de