CVE - CVE-2022-49148

CVE-ID
CVE-2022-49148	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: watch_queue: Free the page array when watch_queue is dismantled Commit 7ea1a0124b6d ("watch_queue: Free the alloc bitmap when the watch_queue is torn down") took care of the bitmap, but not the page array. BUG: memory leak unreferenced object 0xffff88810d9bc140 (size 32): comm "syz-executor335", pid 3603, jiffies 4294946994 (age 12.840s) hex dump (first 32 bytes): 40 a7 40 04 00 ea ff ff 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: kmalloc_array include/linux/slab.h:621 [inline] kcalloc include/linux/slab.h:652 [inline] watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251 pipe_ioctl+0x82/0x140 fs/pipe.c:632 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
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/375cd2536494cfbcdda84ae8b3e35bf19d0250b9 URL:https://git.kernel.org/stable/c/375cd2536494cfbcdda84ae8b3e35bf19d0250b9 MISC:https://git.kernel.org/stable/c/3963a5d1ff75585bddf0c3a918566a6be09d7520 URL:https://git.kernel.org/stable/c/3963a5d1ff75585bddf0c3a918566a6be09d7520 MISC:https://git.kernel.org/stable/c/4913daecd04addb41bc96a9175a885e1c19862a8 URL:https://git.kernel.org/stable/c/4913daecd04addb41bc96a9175a885e1c19862a8 MISC:https://git.kernel.org/stable/c/7169f60110915c8b53bffd43741fa020a75eb87a URL:https://git.kernel.org/stable/c/7169f60110915c8b53bffd43741fa020a75eb87a MISC:https://git.kernel.org/stable/c/b490207017ba237d97b735b2aa66dc241ccd18f5 URL:https://git.kernel.org/stable/c/b490207017ba237d97b735b2aa66dc241ccd18f5
Assigning CNA
kernel.org
Date Record Created
20250226	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 (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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