CVE-2023-52562— mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
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kmem_cache_destroy()的slab_caches列表损坏。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0495e337b7039191dfce6e03f5f830454b1fae6b< a5569bb187521432f509b69dda7d29f78b2d38b0 |
affected |
0495e337b7039191dfce6e03f5f830454b1fae6b< 51988be187b041e5355245957b0b9751fa382e0d |
affected | ||
0495e337b7039191dfce6e03f5f830454b1fae6b< 46a9ea6681907a3be6b6b0d43776dccc62cad6cf |
affected | ||
357321557920c805de2b14832002465c320eea4f |
affected | ||
5.19.8< 5.20 |
affected | ||
6.0 |
affected | ||
< 6.0 |
unaffected | ||
6.1.56≤ 6.1.* |
unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2023-52562
Vulnerability Information
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Vulnerability Title
mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
After the commit in Fixes:, if a module that created a slab cache does not
release all of its allocated objects before destroying the cache (at rmmod
time), we might end up releasing the kmem_cache object without removing it
from the slab_caches list thus corrupting the list as kmem_cache_destroy()
ignores the return value from shutdown_cache(), which in turn never removes
the kmem_cache object from slabs_list in case __kmem_cache_shutdown() fails
to release all of the cache's slabs.
This is easily observable on a kernel built with CONFIG_DEBUG_LIST=y
as after that ill release the system will immediately trip on list_add,
or list_del, assertions similar to the one shown below as soon as another
kmem_cache gets created, or destroyed:
[ 1041.213632] list_del corruption. next->prev should be ffff89f596fb5768, but was 52f1e5016aeee75d. (next=ffff89f595a1b268)
[ 1041.219165] ------------[ cut here ]------------
[ 1041.221517] kernel BUG at lib/list_debug.c:62!
[ 1041.223452] invalid opcode: 0000 [#1] PREEMPT SMP PTI
[ 1041.225408] CPU: 2 PID: 1852 Comm: rmmod Kdump: loaded Tainted: G B W OE 6.5.0 #15
[ 1041.228244] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023
[ 1041.231212] RIP: 0010:__list_del_entry_valid+0xae/0xb0
Another quick way to trigger this issue, in a kernel with CONFIG_SLUB=y,
is to set slub_debug to poison the released objects and then just run
cat /proc/slabinfo after removing the module that leaks slab objects,
in which case the kernel will panic:
[ 50.954843] general protection fault, probably for non-canonical address 0xa56b6b6b6b6b6b8b: 0000 [#1] PREEMPT SMP PTI
[ 50.961545] CPU: 2 PID: 1495 Comm: cat Kdump: loaded Tainted: G B W OE 6.5.0 #15
[ 50.966808] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc37 05/24/2023
[ 50.972663] RIP: 0010:get_slabinfo+0x42/0xf0
This patch fixes this issue by properly checking shutdown_cache()'s
return value before taking the kmem_cache_release() branch.
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kmem_cache_destroy()的slab_caches列表损坏。
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-2023-52562
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2023-52562 (3)
Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total
| CVE-2023-52515 | 9.8 CRITICAL | RDMA/srp: Do not call scsi_done() from srp_abort() |
| CVE-2023-52530 | 8.8 HIGH | wifi: mac80211: fix potential key use-after-free |
| CVE-2023-52522 | 8.8 HIGH | net: fix possible store tearing in neigh_periodic_work() |
| CVE-2023-52502 | 8.8 HIGH | net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() |
| CVE-2024-26621 | 8.2 HIGH | mm: huge_memory: don't force huge page alignment on 32 bit |
| CVE-2023-52523 | 7.8 HIGH | bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets |
| CVE-2023-52509 | 7.8 HIGH | ravb: Fix use-after-free issue in ravb_tx_timeout_work() |
| CVE-2023-52572 | 7.8 HIGH | cifs: Fix UAF in cifs_demultiplex_thread() |
| CVE-2023-52574 | 7.8 HIGH | team: fix null-ptr-deref when team device type is changed |
| CVE-2023-52517 | 7.8 HIGH | spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain |
| CVE-2023-52503 | 7.8 HIGH | tee: amdtee: fix use-after-free vulnerability in amdtee_close_session |
| CVE-2023-52513 | 7.5 HIGH | RDMA/siw: Fix connection failure handling |
| CVE-2023-52565 | 7.1 HIGH | media: uvcvideo: Fix OOB read |
| CVE-2023-52559 | iommu/vt-d: Avoid memory allocation in iommu_suspend() | |
| CVE-2023-52564 | Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux" | |
| CVE-2023-52561 | arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved | |
| CVE-2023-52582 | netfs: Only call folio_start_fscache() one time for each folio | |
| CVE-2023-52566 | nilfs2: fix potential use after free in nilfs_gccache_submit_read_data() | |
| CVE-2023-52518 | Bluetooth: hci_codec: Fix leaking content of local_codecs | |
| CVE-2023-52560 | mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions() |
Showing top 20 of 57 CVEs. View all on vendor page → →
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V. Comments for CVE-2023-52562
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