Archivos mensuales: septiembre 2024

In the Linux kernel, the following vulnerability has been resolved:

btrfs: fix qgroup reserve leaks in cow_file_range

In the buffered write path, the dirty page owns the qgroup reserve until
it creates an ordered_extent.

Therefore, any errors that occur before the ordered_extent is created
must free that reservation, or else the space is leaked. The fstest
generic/475 exercises various IO error paths, and is able to trigger
errors in cow_file_range where we fail to get to allocating the ordered
extent. Note that because we *do* clear delalloc, we are likely to
remove the inode from the delalloc list, so the inodes/pages to not have
invalidate/launder called on them in the commit abort path.

This results in failures at the unmount stage of the test that look like:

BTRFS: error (device dm-8 state EA) in cleanup_transaction:2018: errno=-5 IO failure
BTRFS: error (device dm-8 state EA) in btrfs_replace_file_extents:2416: errno=-5 IO failure
BTRFS warning (device dm-8 state EA): qgroup 0/5 has unreleased space, type 0 rsv 28672
————[ cut here ]————
WARNING: CPU: 3 PID: 22588 at fs/btrfs/disk-io.c:4333 close_ctree+0x222/0x4d0 [btrfs]
Modules linked in: btrfs blake2b_generic libcrc32c xor zstd_compress raid6_pq
CPU: 3 PID: 22588 Comm: umount Kdump: loaded Tainted: G W 6.10.0-rc7-gab56fde445b8 #21
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014
RIP: 0010:close_ctree+0x222/0x4d0 [btrfs]
RSP: 0018:ffffb4465283be00 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffffa1a1818e1000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffb4465283bbe0 RDI: ffffa1a19374fcb8
RBP: ffffa1a1818e13c0 R08: 0000000100028b16 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000003 R12: ffffa1a18ad7972c
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00007f9168312b80(0000) GS:ffffa1a4afcc0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91683c9140 CR3: 000000010acaa000 CR4: 00000000000006f0
Call Trace:

? close_ctree+0x222/0x4d0 [btrfs]
? __warn.cold+0x8e/0xea
? close_ctree+0x222/0x4d0 [btrfs]
? report_bug+0xff/0x140
? handle_bug+0x3b/0x70
? exc_invalid_op+0x17/0x70
? asm_exc_invalid_op+0x1a/0x20
? close_ctree+0x222/0x4d0 [btrfs]
generic_shutdown_super+0x70/0x160
kill_anon_super+0x11/0x40
btrfs_kill_super+0x11/0x20 [btrfs]
deactivate_locked_super+0x2e/0xa0
cleanup_mnt+0xb5/0x150
task_work_run+0x57/0x80
syscall_exit_to_user_mode+0x121/0x130
do_syscall_64+0xab/0x1a0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f916847a887
—[ end trace 0000000000000000 ]—
BTRFS error (device dm-8 state EA): qgroup reserved space leaked

Cases 2 and 3 in the out_reserve path both pertain to this type of leak
and must free the reserved qgroup data. Because it is already an error
path, I opted not to handle the possible errors in
btrfs_free_qgroup_data.

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Assign linear_pitch_alignment even for VM

[Description]
Assign linear_pitch_alignment so we don't cause a divide by 0
error in VM environments

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/pm: fix the Out-of-bounds read warning

using index i – 1U may beyond element index
for mc_data[] when i = 0.

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Ensure array index tg_inst won't be -1

[WHY & HOW]
tg_inst will be a negative if timing_generator_count equals 0, which
should be checked before used.

This fixes 2 OVERRUN issues reported by Coverity.

There is a buffer overflow vulnerability in ZTE MF296R. Due to insufficient validation of the SMS parameter length, an authenticated attacker could use the vulnerability to perform a denial of service attack.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in sonalsinha21 Posterity allows Stored XSS.This issue affects Posterity: from n/a through 3.6.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in CryoutCreations Kahuna allows Stored XSS.This issue affects Kahuna: from n/a through 1.7.0.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in CryoutCreations Liquido allows Stored XSS.This issue affects Liquido: from n/a through 1.0.1.2.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Latepoint LatePoint allows Stored XSS.This issue affects LatePoint: from n/a through 4.9.91.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wpsoul Greenshift – animation and page builder blocks allows Stored XSS.This issue affects Greenshift – animation and page builder blocks: from n/a through 9.3.7.