Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decode_choose_args() A message of type CEPH_MSG_OSD_MAP contains an OSD map that itself contains a CRUSH map. The received CRUSH map may optionally contain choose_args that get decoded in decode_choose_args(). In this function, num_choose_arg_maps is read from the message, and a corresponding number of crush_choose_arg_maps gets decoded afterwards. Each crush_choose_arg_map has a choose_args_index, which serves as the key when inserting it into the choose_args rbtree of the decoded crush_map. If a (potentially corrupted) message contains two crush_choose_arg_maps with the same index, the assertion in insert_choose_arg_map() triggers a kernel BUG when trying to insert the second crush_choose_arg_map. This patch fixes the issue by switching to the non-asserting rbtree insertion function and rejecting the message if the insertion fails. [ idryomov: changelog ]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before c7bf7864e2924fa5508ac270b0e9364bc13d5a6c; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before f47430fc1f815e87406e2d3b4e476eff1bc7fd9b; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before 0b6a3bcb91bc5bfeda39f0df3b71bab62c13e9da; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before 534ebc08df97c47d4c7596f336fa31ecbf91519c; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before 80c73bd1b2b04355d1d0c29be8ccbd25a380905d; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before 4d2b37abda9536808655830d683dc491d31741a8; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before 0a1265a9ab875f92b6a3ffb497404f46cf9d76a3; affected 5cf9c4a9959b6273675310d14a834ef14fbca37c before d289478cfc0bcf81c7914200d6abdcb78bd04ded |
| Linux / Linux | affected 4.13; unaffected 0 before 4.13; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.141 through 6.6.*; unaffected 6.12.91 through 6.12.*; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c7bf7864e2924fa5508ac270b0e9364bc13d5a6c
- https://git.kernel.org/stable/c/f47430fc1f815e87406e2d3b4e476eff1bc7fd9b
- https://git.kernel.org/stable/c/0b6a3bcb91bc5bfeda39f0df3b71bab62c13e9da
- https://git.kernel.org/stable/c/534ebc08df97c47d4c7596f336fa31ecbf91519c
- https://git.kernel.org/stable/c/80c73bd1b2b04355d1d0c29be8ccbd25a380905d
- https://git.kernel.org/stable/c/4d2b37abda9536808655830d683dc491d31741a8
- https://git.kernel.org/stable/c/0a1265a9ab875f92b6a3ffb497404f46cf9d76a3
- https://git.kernel.org/stable/c/d289478cfc0bcf81c7914200d6abdcb78bd04ded
ADP enrichment
No English description supplied.
No references supplied.