CVE-2024-56621— scsi: ufs: core: Cancel RTC work during ufshcd_remove()
Affected Version Matrix 7
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 06701a545e9a3c4e007cff6872a074bf97c40619< 57479e37d3f69efee2f0678568274db773284bc8 | affected |
6bf999e0eb41850d5c857102535d5c53b2ede224< 2e7a3bb0331efb292e0fb022c36bc592137f0520 | affected | ||
6bf999e0eb41850d5c857102535d5c53b2ede224< 1695c4361d35b7bdadd7b34f99c9c07741e181e5 | affected | ||
6.8 | affected | ||
< 6.8 | unaffected | ||
6.12.5≤ 6.12.* | unaffected | ||
6.13≤ * | unaffected |
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I. Basic Information for CVE-2024-56621
Vulnerability Information
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Vulnerability Title
scsi: ufs: core: Cancel RTC work during ufshcd_remove()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Cancel RTC work during ufshcd_remove() Currently, RTC work is only cancelled during __ufshcd_wl_suspend(). When ufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to this, any further trigger of the RTC work after ufshcd_remove() would result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 00000000000002a4 Workqueue: events ufshcd_rtc_work Call trace: _raw_spin_lock_irqsave+0x34/0x8c pm_runtime_get_if_active+0x24/0xb4 ufshcd_rtc_work+0x124/0x19c process_scheduled_works+0x18c/0x2d8 worker_thread+0x144/0x280 kthread+0x11c/0x128 ret_from_fork+0x10/0x20 Since RTC work accesses the ufshcd internal structures, it should be cancelled when ufshcd is removed. So do that in ufshcd_remove(), as per the order in ufshcd_init().
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net/ipv6模块中过期异常目的地缓存未释放。
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-2024-56621
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2024-12-27 · 221 CVEs total
| CVE-2024-56606 | af_packet: avoid erroring out after sock_init_data() in packet_create() | |
| CVE-2024-56592 | bpf: Call free_htab_elem() after htab_unlock_bucket() | |
| CVE-2024-56594 | drm/amdgpu: set the right AMDGPU sg segment limitation | |
| CVE-2024-56595 | jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree | |
| CVE-2024-56596 | jfs: fix array-index-out-of-bounds in jfs_readdir | |
| CVE-2024-56597 | jfs: fix shift-out-of-bounds in dbSplit | |
| CVE-2024-56598 | jfs: array-index-out-of-bounds fix in dtReadFirst | |
| CVE-2024-56599 | wifi: ath10k: avoid NULL pointer error during sdio remove | |
| CVE-2024-56601 | net: inet: do not leave a dangling sk pointer in inet_create() | |
| CVE-2024-56600 | net: inet6: do not leave a dangling sk pointer in inet6_create() | |
| CVE-2024-56602 | net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() | |
| CVE-2024-56603 | net: af_can: do not leave a dangling sk pointer in can_create() | |
| CVE-2024-56604 | Bluetooth: RFCOMM: avoid leaving dangling sk pointer in rfcomm_sock_alloc() | |
| CVE-2024-56605 | Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() | |
| CVE-2024-56617 | cacheinfo: Allocate memory during CPU hotplug if not done from the primary CPU | |
| CVE-2024-56614 | xsk: fix OOB map writes when deleting elements | |
| CVE-2024-56615 | bpf: fix OOB devmap writes when deleting elements | |
| CVE-2024-56616 | drm/dp_mst: Fix MST sideband message body length check | |
| CVE-2024-56613 | sched/numa: fix memory leak due to the overwritten vma->numab_state | |
| CVE-2024-56618 | pmdomain: imx: gpcv2: Adjust delay after power up handshake |
Showing top 20 of 221 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43492
lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_ - CVE-2026-43493
crypto: pcrypt - Fix handling of MAY_BACKLOG requests - CVE-2026-43491
net: qrtr: ns: Limit the maximum server registration per nod - CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length
Same vendor: Linux
- CVE-2026-43492
lib/crypto: mpi: Fix integer underflow in mpi_read_raw_from_ - CVE-2026-43493
crypto: pcrypt - Fix handling of MAY_BACKLOG requests - CVE-2026-43491
net: qrtr: ns: Limit the maximum server registration per nod - CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length
V. Comments for CVE-2024-56621
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