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CVE-2024-44953— scsi: ufs: core: Fix deadlock during RTC update

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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组件存在更新RTC期间发生死锁。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 7

VendorProduct Version RangeStatus
Linux Linux 06701a545e9a3c4e007cff6872a074bf97c40619< a4921b76bc9421d3838e167f6a17ea3112d8fe62 affected
6bf999e0eb41850d5c857102535d5c53b2ede224< f13f1858a28c68b7fc0d72c2008d5c1f80d2e8d5 affected
6bf999e0eb41850d5c857102535d5c53b2ede224< 3911af778f208e5f49d43ce739332b91e26bc48e affected
6.8 affected
< 6.8 unaffected
6.10.5≤ 6.10.* unaffected
6.11≤ * unaffected
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I. Basic Information for CVE-2024-44953

Vulnerability Information
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Vulnerability Title
scsi: ufs: core: Fix deadlock during RTC update
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Fix deadlock during RTC update There is a deadlock when runtime suspend waits for the flush of RTC work, and the RTC work calls ufshcd_rpm_get_sync() to wait for runtime resume. Here is deadlock backtrace: kworker/0:1 D 4892.876354 10 10971 4859 0x4208060 0x8 10 0 120 670730152367 ptr f0ffff80c2e40000 0 1 0x00000001 0x000000ff 0x000000ff 0x000000ff <ffffffee5e71ddb0> __switch_to+0x1a8/0x2d4 <ffffffee5e71e604> __schedule+0x684/0xa98 <ffffffee5e71ea60> schedule+0x48/0xc8 <ffffffee5e725f78> schedule_timeout+0x48/0x170 <ffffffee5e71fb74> do_wait_for_common+0x108/0x1b0 <ffffffee5e71efe0> wait_for_completion+0x44/0x60 <ffffffee5d6de968> __flush_work+0x39c/0x424 <ffffffee5d6decc0> __cancel_work_sync+0xd8/0x208 <ffffffee5d6dee2c> cancel_delayed_work_sync+0x14/0x28 <ffffffee5e2551b8> __ufshcd_wl_suspend+0x19c/0x480 <ffffffee5e255fb8> ufshcd_wl_runtime_suspend+0x3c/0x1d4 <ffffffee5dffd80c> scsi_runtime_suspend+0x78/0xc8 <ffffffee5df93580> __rpm_callback+0x94/0x3e0 <ffffffee5df90b0c> rpm_suspend+0x2d4/0x65c <ffffffee5df91448> __pm_runtime_suspend+0x80/0x114 <ffffffee5dffd95c> scsi_runtime_idle+0x38/0x6c <ffffffee5df912f4> rpm_idle+0x264/0x338 <ffffffee5df90f14> __pm_runtime_idle+0x80/0x110 <ffffffee5e24ce44> ufshcd_rtc_work+0x128/0x1e4 <ffffffee5d6e3a40> process_one_work+0x26c/0x650 <ffffffee5d6e65c8> worker_thread+0x260/0x3d8 <ffffffee5d6edec8> kthread+0x110/0x134 <ffffffee5d616b18> ret_from_fork+0x10/0x20 Skip updating RTC if RPM state is not RPM_ACTIVE.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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组件存在更新RTC期间发生死锁。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 06701a545e9a3c4e007cff6872a074bf97c40619 ~ a4921b76bc9421d3838e167f6a17ea3112d8fe62 -
Linux Linux 6.8 -

II. Public POCs for CVE-2024-44953

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III. Intelligence Information for CVE-2024-44953

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Patches & Fixes for CVE-2024-44953 (3)

Same Patch Batch · Linux · 2024-09-04 · 58 CVEs total

CVE-2024-44984 10.0 CRITICAL bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
CVE-2024-44985 9.8 CRITICAL ipv6: prevent possible UAF in ip6_xmit()
CVE-2024-44970 9.8 CRITICAL net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
CVE-2024-44998 9.8 CRITICAL atm: idt77252: prevent use after free in dequeue_rx()
CVE-2024-44994 8.8 HIGH iommu: Restore lost return in iommu_report_device_fault()
CVE-2024-44988 8.8 HIGH net: dsa: mv88e6xxx: Fix out-of-bound access
CVE-2024-44986 8.1 HIGH ipv6: fix possible UAF in ip6_finish_output2()
CVE-2024-44973 8.1 HIGH mm, slub: do not call do_slab_free for kfence object
CVE-2024-45000 7.8 HIGH fs/netfs/fscache_cookie: add missing "n_accesses" check
CVE-2024-44966 7.8 HIGH binfmt_flat: Fix corruption when not offsetting data start
CVE-2024-44967 7.8 HIGH drm/mgag200: Bind I2C lifetime to DRM device
CVE-2024-44954 7.8 HIGH ALSA: line6: Fix racy access to midibuf
CVE-2024-44997 7.8 HIGH net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()
CVE-2024-44974 7.8 HIGH mptcp: pm: avoid possible UaF when selecting endp
CVE-2024-44995 7.8 HIGH net: hns3: fix a deadlock problem when config TC during resetting
CVE-2024-44978 7.8 HIGH drm/xe: Free job before xe_exec_queue_put
CVE-2024-44951 7.8 HIGH serial: sc16is7xx: fix TX fifo corruption
CVE-2024-44949 7.8 HIGH parisc: fix a possible DMA corruption
CVE-2024-44987 7.8 HIGH ipv6: prevent UAF in ip6_send_skb()
CVE-2024-44959 7.8 HIGH tracefs: Use generic inode RCU for synchronizing freeing

Showing top 20 of 58 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-44953

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