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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-36012

Bluetooth: msft: fix slab-use-after-free in msft_do_close()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: msft: fix slab-use-after-free in msft_do_close() Tying the msft->data lifetime to hdev by freeing it in hci_release_dev() to fix the following case: [use] msft_do_close() msft = hdev->msft_data; if (!msft) ...(1) <- passed. return; mutex_lock(&msft->filter_lock); ...(4) <- used after freed. [free] msft_unregister() msft = hdev->msft_data; hdev->msft_data = NULL; ...(2) kfree(msft); ...(3) <- msft is freed. ================================================================== BUG: KASAN: slab-use-after-free in __mutex_lock_common kernel/locking/mutex.c:587 [inline] BUG: KASAN: slab-use-after-free in __mutex_lock+0x8f/0xc30 kernel/locking/mutex.c:752 Read of size 8 at addr ffff888106cbbca8 by task kworker/u5:2/309

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 to < e3880b531b68f98d3941d83f2f6dd11cf4fd6b76affected
  • bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 to < a85a60e62355e3bf4802dead7938966824b23940affected
  • bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 to < 4f1de02de07748da80a8178879bc7a1df37fdf56affected
  • bf6a4e30ffbd9e9ef8934582feb937f6532f8b68 to < 10f9f426ac6e752c8d87bf4346930ba347aaabacaffected

Linux Linux

Default version status: affected

  • 5.12affected
  • 0 to < 5.12unaffected
  • 6.1.91 to ≤ 6.1.*unaffected
  • 6.6.31 to ≤ 6.6.*unaffected
  • 6.8.10 to ≤ 6.8.*unaffected
  • 6.9 to ≤ *unaffected

References