Description
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: fix OOB Read in qrtr_endpoint_post Syzbot reported slab-out-of-bounds Read in qrtr_endpoint_post. The problem was in wrong _size_ type: if (len != ALIGN(size, 4) + hdrlen) goto err; If size from qrtr_hdr is 4294967293 (0xfffffffd), the result of ALIGN(size, 4) will be 0. In case of len == hdrlen and size == 4294967293 in header this check won't fail and skb_put_data(skb, data + hdrlen, size); will read out of bound from data, which is hdrlen allocated block.
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
194ccc88297ae78d0803adad83c6dcc369787c9e to < f8111c0d7ed42ede41a3d0d393b104de0730a8a6affected194ccc88297ae78d0803adad83c6dcc369787c9e to < 26b8d10703a9be45d6097946b2b4011f7dd2c56faffected194ccc88297ae78d0803adad83c6dcc369787c9e to < 960b08dd36de1e341e3eb43d1c547513e338f4f8affected194ccc88297ae78d0803adad83c6dcc369787c9e to < 19892ab9c9d838e2e5a7744d36e4bb8b7c3292feaffected194ccc88297ae78d0803adad83c6dcc369787c9e to < ad9d24c9429e2159d1e279dc3a83191ccb4daf1daffected
Linux Linux
Default version status: affected
4.15affected0 to < 4.15unaffected4.19.196 to ≤ 4.19.*unaffected5.4.128 to ≤ 5.4.*unaffected5.10.46 to ≤ 5.10.*unaffected5.12.13 to ≤ 5.12.*unaffected5.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/f8111c0d7ed42ede41a3d0d393b104de0730a8a6 ↗
- https://git.kernel.org/stable/c/26b8d10703a9be45d6097946b2b4011f7dd2c56f ↗
- https://git.kernel.org/stable/c/960b08dd36de1e341e3eb43d1c547513e338f4f8 ↗
- https://git.kernel.org/stable/c/19892ab9c9d838e2e5a7744d36e4bb8b7c3292fe ↗
- https://git.kernel.org/stable/c/ad9d24c9429e2159d1e279dc3a83191ccb4daf1d ↗