CVE - CVE-2021-47355

CVE-ID
CVE-2021-47355	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: atm: nicstar: Fix possible use-after-free in nicstar_cleanup() This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free. Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2f958b6f6ba0854b39be748d21dfe71e0fe6580f URL:https://git.kernel.org/stable/c/2f958b6f6ba0854b39be748d21dfe71e0fe6580f MISC:https://git.kernel.org/stable/c/34e7434ba4e97f4b85c1423a59b2922ba7dff2ea URL:https://git.kernel.org/stable/c/34e7434ba4e97f4b85c1423a59b2922ba7dff2ea MISC:https://git.kernel.org/stable/c/4e2a0848ea2cab0716d46f85a8ccd5fa9a493e51 URL:https://git.kernel.org/stable/c/4e2a0848ea2cab0716d46f85a8ccd5fa9a493e51 MISC:https://git.kernel.org/stable/c/5b991df8881088448cb223e769e37cab8dd40706 URL:https://git.kernel.org/stable/c/5b991df8881088448cb223e769e37cab8dd40706 MISC:https://git.kernel.org/stable/c/99779c9d9ffc7775da6f7fd8a7c93ac61657bed5 URL:https://git.kernel.org/stable/c/99779c9d9ffc7775da6f7fd8a7c93ac61657bed5 MISC:https://git.kernel.org/stable/c/a7a7b2848312cc4c3a42b6e42a8ab2e441857aba URL:https://git.kernel.org/stable/c/a7a7b2848312cc4c3a42b6e42a8ab2e441857aba MISC:https://git.kernel.org/stable/c/a7f7c42e31157d1f0871d6a8e1a0b73a6b4ea785 URL:https://git.kernel.org/stable/c/a7f7c42e31157d1f0871d6a8e1a0b73a6b4ea785 MISC:https://git.kernel.org/stable/c/bdf5334250c69fabf555b7322c75249ea7d5f148 URL:https://git.kernel.org/stable/c/bdf5334250c69fabf555b7322c75249ea7d5f148 MISC:https://git.kernel.org/stable/c/c471569632654e57c83512e0fc1ba0dbb4544ad6 URL:https://git.kernel.org/stable/c/c471569632654e57c83512e0fc1ba0dbb4544ad6
Assigning CNA
kernel.org
Date Record Created
20240521	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240521)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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