UAF on CAN BCM bcm_rx_handler

This bug was fixed in the package linux - 5.11.0-22.23

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linux (5.11.0-22.23) hirsute; urgency=medium

  * UAF on CAN J1939 j1939_can_recv (LP: #1932209)
    - SAUCE: can: j1939: delay release of j1939_priv after synchronize_rcu

  * UAF on CAN BCM bcm_rx_handler (LP: #1931855)
    - SAUCE: can: bcm: delay release of struct bcm_op after synchronize_rcu

linux (5.11.0-20.21) hirsute; urgency=medium

  * hirsute/linux: 5.11.0-20.21 -proposed tracker (LP: #1930854)

  * ath11k WIFI not working in proposed kernel 5.11.0-19-generic (LP: #1930637)
    - bus: mhi: core: Download AMSS image from appropriate function

linux (5.11.0-19.20) hirsute; urgency=medium

  * hirsute/linux: 5.11.0-19.20 -proposed tracker (LP: #1930075)

  * Packaging resync (LP: #1786013)
    - update dkms package versions

  * CVE-2021-33200
    - bpf: Wrap aux data inside bpf_sanitize_info container
    - bpf: Fix mask direction swap upon off reg sign change
    - bpf: No need to simulate speculative domain for immediates

  * AX201 BT will cause system could not enter S0i3 (LP: #1928047)
    - SAUCE: drm/i915: Tweaked Wa_14010685332 for all PCHs

  * CVE-2021-3490
    - SAUCE: Revert "UBUNTU: SAUCE: bpf: verifier: fix ALU32 bounds tracking with
      bitwise ops"
    - gpf: Fix alu32 const subreg bound tracking on bitwise operations

  * CVE-2021-3489
    - SAUCE: Revert "UBUNTU: SAUCE: bpf: prevent writable memory-mapping of read-
      only ringbuf pages"
    - bpf: Prevent writable memory-mapping of read-only ringbuf pages

  * Select correct boot VGA when BIOS doesn't do it properly (LP: #1929217)
    - vgaarb: Use ACPI HID name to find integrated GPU

  * Realtek USB hubs in Dell WD19SC/DC/TB fail to work after exiting s2idle
    (LP: #1928242)
    - USB: Verify the port status when timeout happens during port suspend

  * CVE-2020-26145
    - ath10k: drop fragments with multicast DA for SDIO
    - ath10k: add CCMP PN replay protection for fragmented frames for PCIe
    - ath10k: drop fragments with multicast DA for PCIe

  * CVE-2020-26141
    - ath10k: Fix TKIP Michael MIC verification for PCIe

  * CVE-2020-24587
    - ath11k: Clear the fragment cache during key install

  * CVE-2020-24588
    - mac80211: properly handle A-MSDUs that start with an RFC 1042 header
    - cfg80211: mitigate A-MSDU aggregation attacks
    - mac80211: drop A-MSDUs on old ciphers
    - ath10k: drop MPDU which has discard flag set by firmware for SDIO

  * CVE-2020-26139
    - mac80211: do not accept/forward invalid EAPOL frames

  * CVE-2020-24586 // CVE-2020-24587 // CVE-2020-24587 for such cases.
    - mac80211: extend protection against mixed key and fragment cache attacks

  * CVE-2020-24586 // CVE-2020-24587
    - mac80211: prevent mixed key and fragment cache attacks
    - mac80211: add fragment cache to sta_info
    - mac80211: check defrag PN against current frame
    - mac80211: prevent attacks on TKIP/WEP as well

  * CVE-2020-26147
    - mac80211: assure all fragments are encrypted

  * raid10: Block discard is very slow, causing severe delays for mkfs and
    fstrim operations (LP: #1896578)
    - md: add md_submit_discard_bio() for submitting discard bio
    - ...

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-hirsute' to 'verification-done-hirsute'. If the problem still exists, change the tag 'verification-needed-hirsute' to 'verification-failed-hirsute'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!