CVE-2021-47622— scsi: ufs: Fix a deadlock in the error handler
Affected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7252a3603015f1fd04363956f4b72a537c9f9c42< 493c9e850677df8b4eda150c2364b1c1a72ed724 | affected |
7252a3603015f1fd04363956f4b72a537c9f9c42< d69d98d8edf90e25e4e09930dd36dd6d09dd6768 | affected | ||
7252a3603015f1fd04363956f4b72a537c9f9c42< 945c3cca05d78351bba29fa65d93834cb7934c7b | affected | ||
a8d2d45c70c7391386baf7863674f156da56a3d5 | affected | ||
5.4.112< 5.5 | affected | ||
5.6 | affected | ||
< 5.6 | unaffected | ||
5.15.25≤ 5.15.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2021-47622
Vulnerability Information
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Vulnerability Title
scsi: ufs: Fix a deadlock in the error handler
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: Fix a deadlock in the error handler The following deadlock has been observed on a test setup: - All tags allocated - The SCSI error handler calls ufshcd_eh_host_reset_handler() - ufshcd_eh_host_reset_handler() queues work that calls ufshcd_err_handler() - ufshcd_err_handler() locks up as follows: Workqueue: ufs_eh_wq_0 ufshcd_err_handler.cfi_jt Call trace: __switch_to+0x298/0x5d8 __schedule+0x6cc/0xa94 schedule+0x12c/0x298 blk_mq_get_tag+0x210/0x480 __blk_mq_alloc_request+0x1c8/0x284 blk_get_request+0x74/0x134 ufshcd_exec_dev_cmd+0x68/0x640 ufshcd_verify_dev_init+0x68/0x35c ufshcd_probe_hba+0x12c/0x1cb8 ufshcd_host_reset_and_restore+0x88/0x254 ufshcd_reset_and_restore+0xd0/0x354 ufshcd_err_handler+0x408/0xc58 process_one_work+0x24c/0x66c worker_thread+0x3e8/0xa4c kthread+0x150/0x1b4 ret_from_fork+0x10/0x30 Fix this lockup by making ufshcd_exec_dev_cmd() allocate a reserved request.
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scsi:ufs模块中发现死锁问题。在SCSI错误处理程序调用ufshcd_eh_host_reset_handler函数时，可能会导致死锁。
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-2021-47622
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-47622 (3)
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
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