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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2022-49474

Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout Connecting the same socket twice consecutively in sco_sock_connect() could lead to a race condition where two sco_conn objects are created but only one is associated with the socket. If the socket is closed before the SCO connection is established, the timer associated with the dangling sco_conn object won't be canceled. As the sock object is being freed, the use-after-free problem happens when the timer callback function sco_sock_timeout() accesses the socket. Here's the call trace: dump_stack+0x107/0x163 ? refcount_inc+0x1c/ print_address_description.constprop.0+0x1c/0x47e ? refcount_inc+0x1c/0x7b kasan_report+0x13a/0x173 ? refcount_inc+0x1c/0x7b check_memory_region+0x132/0x139 refcount_inc+0x1c/0x7b sco_sock_timeout+0xb2/0x1ba process_one_work+0x739/0xbd1 ? cancel_delayed_work+0x13f/0x13f ? __raw_spin_lock_init+0xf0/0xf0 ? to_kthread+0x59/0x85 worker_thread+0x593/0x70e kthread+0x346/0x35a ? drain_workqueue+0x31a/0x31a ? kthread_bind+0x4b/0x4b ret_from_fork+0x1f/0x30

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

  • 22c66af08230a7030bdb88accffaec3424695631 to < 9de3dc09e56f8deacd2bdbf4cecb71e11a312405affected
  • 0115a66ebb44bd9127ccb58cf43ed23c795eb1f0 to < 7d61dbd7311ab978d8ddac1749a758de4de00374affected
  • bc4b08383046f3282b6fa58cfcef05bd13e52b93 to < 390d82733a953c1fabf3de9c9618091a7a9c90a6affected
  • 5ccb04c6e1fb7b97fa2e1785b67c3a1cb3527ef7 to < 6f55fac0af3531cf60d11369454c41f5fc81ab3faffected
  • 059c2c09f4b7f97711d0d8eaa0b9877f5e7d0a75 to < 36c644c63bfcaee2d3a426f45e89a9cd09799318affected
  • e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 to < 65d347cb39e2e6bd0c2a745ad7c928998ebb0162affected
  • e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 to < 537f619dea4e3fa8ed1f8f938abffe3615794bccaffected
  • e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 to < 99df16007f4bbf9abfc3478cb17d10f0d7f8906eaffected
  • e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 to < 7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2affected
  • 98ae477ed1540d3acbbf44d88ee237ad64275158affected
  • f0c389e23e2475e5837716a629c81b7a9d90cc94affected
  • 0b9da4bde0d59c61b3675bdd80a05a726beb875aaffected
  • 4.9.283 to < 4.9.318affected
  • 4.14.247 to < 4.14.283affected
  • 4.19.207 to < 4.19.247affected
  • 5.4.146 to < 5.4.198affected
  • 5.10.65 to < 5.10.121affected
  • 4.4.284 to < 4.5affected
  • 5.13.17 to < 5.14affected
  • 5.14.4 to < 5.15affected

Linux Linux

Default version status: affected

  • 5.15affected
  • 0 to < 5.15unaffected
  • 4.9.318 to ≤ 4.9.*unaffected
  • 4.14.283 to ≤ 4.14.*unaffected
  • 4.19.247 to ≤ 4.19.*unaffected
  • 5.4.198 to ≤ 5.4.*unaffected
  • 5.10.121 to ≤ 5.10.*unaffected
  • 5.15.46 to ≤ 5.15.*unaffected
  • 5.17.14 to ≤ 5.17.*unaffected
  • 5.18.3 to ≤ 5.18.*unaffected
  • 5.19 to ≤ *unaffected

References