CVE-2021-46924

一、漏洞信息
漏洞编号：CVE-2021-46924
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0
CVSS V3.0分值：
BaseScore：5.5 Medium
Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:NFC: st21nfca: Fix memory leak in device probe and remove phy->pending_skb is alloced when device probe, but forgot to freein the error handling path and remove path, this cause memory leakas follows:unreferenced object 0xffff88800bc06800 (size 512): comm 8 , pid 11775, jiffies 4295159829 (age 9.032s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450 [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0 [<000000005fea522c>] __alloc_skb+0x124/0x380 [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2Fix it by freeing pending_skb in error and remove.
漏洞公开时间：2024-02-27 18:15:07
漏洞创建时间：2024-02-27 18:41:47
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2021-46924

更多参考(点击展开)

参考来源	参考链接	来源链接
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-46924	https://bugzilla.suse.com/show_bug.cgi?id=1220459
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2021-46924	https://bugzilla.suse.com/show_bug.cgi?id=1220459
suse_bugzilla	https://lore.kernel.org/linux-cve-announce/2024022748-CVE-2021-46924-3483@gregkh/T/#u	https://bugzilla.suse.com/show_bug.cgi?id=1220459
suse_bugzilla	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1b9dadba502234eea7244879b8d5d126bfaf9f0c	https://bugzilla.suse.com/show_bug.cgi?id=1220459
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024022748-CVE-2021-46924-3483@gregkh/T/#u	https://bugzilla.redhat.com/show_bug.cgi?id=2266455
ubuntu	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46924	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://git.kernel.org/linus/1b9dadba502234eea7244879b8d5d126bfaf9f0c (5.16-rc8)	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2021-46924	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://launchpad.net/bugs/cve/CVE-2021-46924	https://ubuntu.com/security/CVE-2021-46924
ubuntu	https://security-tracker.debian.org/tracker/CVE-2021-46924	https://ubuntu.com/security/CVE-2021-46924
cve_search		https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d
cve_search		https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349
cve_search		https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b
cve_search		https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4
cve_search		https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe
cve_search		https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4

漏洞分析指导链接：
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
漏洞数据来源:
openBrain开源漏洞感知系统
漏洞补丁信息：

详情(点击展开)

影响的包	修复补丁	问题引入补丁	来源
	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1b9dadba502234eea7244879b8d5d126bfaf9f0c		suse_bugzilla
	https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c		nvd
	https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b		nvd
	https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe		nvd
	https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d		nvd
	https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349		nvd
	https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4		nvd
linux	https://git.kernel.org/linus/1b9dadba502234eea7244879b8d5d126bfaf9f0c	https://git.kernel.org/linus/68957303f44a501af5cf37913208a2acaa6bcdf1	ubuntu

二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:NFC: st21nfca: Fix memory leak in device probe and remove phy->pending_skb is alloced when device probe, but forgot to freein the error handling path and remove path, this cause memory leakas follows:unreferenced object 0xffff88800bc06800 (size 512): comm 8 , pid 11775, jiffies 4295159829 (age 9.032s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450 [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0 [<000000005fea522c>] __alloc_skb+0x124/0x380 [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2Fix it by freeing pending_skb in error and remove.
openEuler评分：
4.3
Vector：CVSS：3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
受影响版本排查(受影响/不受影响)：
1.openEuler-20.03-LTS-SP1(4.19.90):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):受影响
3.openEuler-22.03-LTS(5.10.0):不受影响
4.openEuler-22.03-LTS-SP1(5.10.0):不受影响
5.openEuler-22.03-LTS-SP2(5.10.0):不受影响
6.openEuler-22.03-LTS-SP3(5.10.0):不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next(5.10.0):不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS(5.10.0):否
4.openEuler-22.03-LTS-SP1(5.10.0):否
5.openEuler-22.03-LTS-SP2(5.10.0):否
6.openEuler-22.03-LTS-SP3(5.10.0):否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1393

Hi openeuler-ci-bot, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Kernel, and any of the maintainers.

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issue处理注意事项:
1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;
2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;
3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.

影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响):
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):

issue处理具体操作请参考:
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2021-46924	None	None	https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349 https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4 https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
https://ubuntu.com/security/CVE-2021-46924	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2021-46924	None	None	https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349 https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4 https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2021-46924
https://security-tracker.debian.org/tracker/CVE-2021-46924

说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用CVE补丁工具。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

@ci-robot 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@zhangchangzhong 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@hongrongxuan 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

CVE-2021-46924

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

NFC: st21nfca: Fix memory leak in device probe and remove

'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:

unreferenced object 0xffff88800bc06800 (size 512):
comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
[<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
[<000000005fea522c>] __alloc_skb+0x124/0x380
[<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2

Fix it by freeing 'pending_skb' in error and remove.

openEuler评分:(评分和向量)
4.3
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1(4.19.90):受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:受影响
9.openEuler-24.03-LTS:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否

@成坚 (CHENG Jian) ,@Xie XiuQi ,@YangYingliang ,@pi3orama ,@jiaoff ,@郭梦琪
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I947OW:CVE-2021-46924
受影响分支: openEuler-22.03-LTS-Next/openEuler-22.03-LTS-SP1/openEuler-22.03-LTS-SP2/openEuler-22.03-LTS-SP3/openEuler-22.03-LTS
具体操作参考: https://gitee.com/help/articles/4142

CVE-2021-46924

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

NFC: st21nfca: Fix memory leak in device probe and remove

'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:

unreferenced object 0xffff88800bc06800 (size 512):
comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
[<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
[<000000005fea522c>] __alloc_skb+0x124/0x380
[<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2

Fix it by freeing 'pending_skb' in error and remove.

openEuler评分:(评分和向量)
4.3
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

===========================================================

@成坚 (CHENG Jian) ,@Xie XiuQi ,@YangYingliang ,@pi3orama ,@jiaoff ,@郭梦琪
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I947OW:CVE-2021-46924
受影响分支: openEuler-22.03-LTS-SP2/openEuler-22.03-LTS-SP3/openEuler-22.03-LTS/openEuler-22.03-LTS-SP1
具体操作参考: https://gitee.com/help/articles/4142

CVE-2021-46924

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

NFC: st21nfca: Fix memory leak in device probe and remove

'phy->pending_skb' is alloced when device probe, but forgot to free
in the error handling path and remove path, this cause memory leak
as follows:

unreferenced object 0xffff88800bc06800 (size 512):
comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
[<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
[<000000005fea522c>] __alloc_skb+0x124/0x380
[<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2

Fix it by freeing 'pending_skb' in error and remove.

openEuler评分:(评分和向量)
4.3
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS:不受影响
4.openEuler-22.03-LTS-SP1:不受影响
5.openEuler-22.03-LTS-SP2:不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

===========================================================

src-openEuler / kernel

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CVE-2021-46924

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