In the Linux kernel, the following vulnerability has been resolved:
thermal: int340x: fix memory leak in int3400_notify()
It is easy to hit the below memory leaks in my TigerLake platform:
unreferenced object 0xffff927c8b91dbc0 (size 32):
comm “kworker/0:2”, pid 112, jiffies 4294893323 (age 83.604s)
hex dump (first 32 bytes):
4e 41 4d 45 3d 49 4e 54 33 34 30 30 20 54 68 65 NAME=INT3400 The
72 6d 61 6c 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 rmal.kkkkkkkkkk.
backtrace:
[<ffffffff9c502c3e>] __kmalloc_track_caller+0x2fe/0x4a0
[<ffffffff9c7b7c15>] kvasprintf+0x65/0xd0
[<ffffffff9c7b7d6e>] kasprintf+0x4e/0x70
[<ffffffffc04cb662>] int3400_notify+0x82/0x120 [int3400_thermal]
[<ffffffff9c8b7358>] acpi_ev_notify_dispatch+0x54/0x71
[<ffffffff9c88f1a7>] acpi_os_execute_deferred+0x17/0x30
[<ffffffff9c2c2c0a>] process_one_work+0x21a/0x3f0
[<ffffffff9c2c2e2a>] worker_thread+0x4a/0x3b0
[<ffffffff9c2cb4dd>] kthread+0xfd/0x130
[<ffffffff9c201c1f>] ret_from_fork+0x1f/0x30
Fix it by calling kfree() accordingly.
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/thermal/intel/int340x_thermal/int3400_thermal.c"
],
"versions": [
{
"version": "38e44da59130",
"lessThan": "f0ddc5184b01",
"status": "affected",
"versionType": "git"
},
{
"version": "38e44da59130",
"lessThan": "c3fa6d1937a8",
"status": "affected",
"versionType": "git"
},
{
"version": "38e44da59130",
"lessThan": "2e798814e018",
"status": "affected",
"versionType": "git"
},
{
"version": "38e44da59130",
"lessThan": "e098933866f9",
"status": "affected",
"versionType": "git"
},
{
"version": "38e44da59130",
"lessThan": "ba9efbbf6745",
"status": "affected",
"versionType": "git"
},
{
"version": "38e44da59130",
"lessThan": "33c73a4d7e7b",
"status": "affected",
"versionType": "git"
},
{
"version": "38e44da59130",
"lessThan": "3abea10e6a8f",
"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/thermal/intel/int340x_thermal/int3400_thermal.c"
],
"versions": [
{
"version": "4.14",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.14",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.14.274",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "4.19.237",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.188",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.103",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.26",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.16.12",
"lessThanOrEqual": "5.16.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.17",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/2e798814e01827871938ff172d2b2ccf1e74b355
git.kernel.org/stable/c/33c73a4d7e7b19313a6b417152f5365016926418
git.kernel.org/stable/c/3abea10e6a8f0e7804ed4c124bea2d15aca977c8
git.kernel.org/stable/c/ba9efbbf6745750d34c1e87c9539ce9db645ca0a
git.kernel.org/stable/c/c3fa6d1937a8d0828131a04ae2cd2c30d0668693
git.kernel.org/stable/c/e098933866f9e1dd3ef4eebbe2e3d504f970f599
git.kernel.org/stable/c/f0ddc5184b0127038d05008e2a69f89d1e13f980