CVE-2025-38024
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BaseFortify

Publication date: 2025-06-18

Last updated on: 2025-12-17

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcf/0x610 mm/kasan/report.c:489 kasan_report+0xb5/0xe0 mm/kasan/report.c:602 rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195 rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132 __rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232 rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109 create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052 ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095 ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679 vfs_write fs/read_write.c:677 [inline] vfs_write+0x26a/0xcc0 fs/read_write.c:659 ksys_write+0x1b8/0x200 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f In the function rxe_create_cq, when rxe_cq_from_init fails, the function rxe_cleanup will be called to handle the allocated resources. In fact, some memory resources have already been freed in the function rxe_cq_from_init. Thus, this problem will occur. The solution is to let rxe_cleanup do all the work.
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Meta Information
Published
2025-06-18
Last Modified
2025-12-17
Generated
2026-05-06
AI Q&A
2025-06-18
EPSS Evaluated
2026-05-05
NVD
CVE-2025-38024
Affected Vendors & Products
Showing 14 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 4.8 (inc) to 5.4.294 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.238 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.184 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.140 (exc)
linux linux_kernel From 6.2 (inc) to 6.6.92 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.30 (exc)
linux linux_kernel From 6.13 (inc) to 6.14.8 (exc)
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
linux linux_kernel 6.15
debian debian_linux 11.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a use-after-free bug in the Linux kernel's RDMA/rxe driver. Specifically, when the function rxe_cq_from_init fails during the creation of a completion queue (rxe_create_cq), the cleanup function rxe_cleanup is called to free allocated resources. However, some memory has already been freed in rxe_cq_from_init, leading to a double free or use-after-free condition. This can cause memory corruption or crashes. The fix ensures that rxe_cleanup handles all resource freeing to avoid this issue.


How can this vulnerability impact me? :

This vulnerability can lead to memory corruption or kernel crashes due to use-after-free errors in the RDMA/rxe driver. Exploiting this could potentially allow an attacker with access to the affected functionality to cause denial of service or possibly escalate privileges by manipulating kernel memory.


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