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Sun, 7 Jun 2026 07:27:21 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id g9L8ClkdJWoOPQAAD6G6ig (envelope-from ); Sun, 07 Jun 2026 07:27:21 +0000 Date: Sun, 07 Jun 2026 09:27:20 +0200 Message-ID: <87h5nestd3.wl-tiwai@suse.de> From: Takashi Iwai To: Ruoyu Wang Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/8] ALSA: check snd_ctl_new1() return before dereferencing In-Reply-To: <20260607025613.3604194-1-ruoyuw560@gmail.com> References: <20260607025613.3604194-1-ruoyuw560@gmail.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/30.2 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-Rspamd-Action: no action X-Spamd-Result: default: False [-3.51 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; 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no-senders; approved; loop; banned-address; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Sun, 07 Jun 2026 04:56:05 +0200, Ruoyu Wang wrote: > > Several ALSA drivers dereference the pointer returned by snd_ctl_new1() > to adjust id.device, id.index, or store bookkeeping pointers before > calling snd_ctl_add(). snd_ctl_new1() can return NULL on allocation > failure, making these writes a NULL pointer dereference. > > This series adds NULL checks to all affected call sites found by static > analysis. > > Ruoyu Wang (8): > ALSA: es18xx: check control allocation before private data setup > ALSA: gus: check PCM volume control allocation > ALSA: cmipci: check S/PDIF control allocations > ALSA: es1938: check control allocation before private data setup > ALSA: ice1712: aureon: check CS8415 control allocation > ALSA: ice1712: check pro S/PDIF control allocations > ALSA: ice1724: check S/PDIF control allocations > ALSA: ymfpci: check S/PDIF control allocations Some of them seems to have been already applied or conflicting. Please rebase on the latest for-next branch of sound.git tree and resubmit. thanks, Takashi